TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
VELOCITY SOUND [36 records]
Record 1 - internal organization data 2023-05-09
Record 1, English
Record 1, Subject field(s)
- Scientific Measurements and Analyses
- Sonar and Underwater Detection (Military)
Record 1, Main entry term, English
- sound velocity profile
1, record 1, English, sound%20velocity%20profile
correct
Record 1, Abbreviations, English
- SVP 2, record 1, English, SVP
correct
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
When we plot the speed of sound as a function of depth in the ocean, it is called the sound velocity profile or SVP. An SVP is a very useful tool for being able to predict the path of propagation of sound in the ocean. 3, record 1, English, - sound%20velocity%20profile
Record 1, French
Record 1, Domaine(s)
- Mesures et analyse (Sciences)
- Sonar et détection sous-marine (Militaire)
Record 1, Main entry term, French
- profil de vitesse du son
1, record 1, French, profil%20de%20vitesse%20du%20son
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- profil de célérité du son 2, record 1, French, profil%20de%20c%C3%A9l%C3%A9rit%C3%A9%20du%20son
masculine noun
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2023-03-28
Record 2, English
Record 2, Subject field(s)
- Weather Stations and Meteorological Instruments and Equipment
- Meteorological Forecasting, Data Measurement and Analysis
- Remote Sensing
Record 2, Main entry term, English
- sodar
1, record 2, English, sodar
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- acoustic radar 2, record 2, English, acoustic%20radar
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Sodars emit sound waves and detect the backscattered acoustic signal to measure atmospheric structure and, in the case of Doppler sodars, velocity.... Today sodars are used for operational monitoring of winds above normal tower heights at power plants and other pollution sources... 3, record 2, English, - sodar
Record number: 2, Textual support number: 1 OBS
sodar: [a coined] word from "sound detection and ranging." 2, record 2, English, - sodar
Record 2, French
Record 2, Domaine(s)
- Stations, instruments et équipements météorologiques
- Prévisions météorologiques et mesure et analyse des données
- Télédétection
Record 2, Main entry term, French
- sodar
1, record 2, French, sodar
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Sondeur atmosphérique à impulsions acoustiques, utilisé pour effectuer des télésondages. 2, record 2, French, - sodar
Record number: 2, Textual support number: 1 OBS
sodar : désignation et définition publiées au Journal officiel de la République française le 22 septembre 2000. 3, record 2, French, - sodar
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Estaciones, instrumentos y equipos meteorológicos
- Previsiones meteorológicas, medición y análisis de datos
- Teledetección
Record 2, Main entry term, Spanish
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- radar sónico 2, record 2, Spanish, radar%20s%C3%B3nico
masculine noun
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Equipo que emite impulsos sonoros y los recibe después de su difusión por la atmósfera a fin de determinar ciertas propiedades características de la atmósfera en función de la altitud. 1, record 2, Spanish, - sodar
Record 3 - internal organization data 2020-12-22
Record 3, English
Record 3, Subject field(s)
- Metrology and Units of Measure
- Acoustics (Physics)
Record 3, Main entry term, English
- MKS rayl
1, record 3, English, MKS%20rayl
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Specific acoustic impedance is the complex ratio of the effective sound pressure at a point to the effective particle velocity at a point. The unit [of measure] is the... MKS rayl. 2, record 3, English, - MKS%20rayl
Record number: 3, Textual support number: 1 OBS
MKS: metre-kilogram-second. 3, record 3, English, - MKS%20rayl
Record 3, French
Record 3, Domaine(s)
- Unités de mesure et métrologie
- Acoustique (Physique)
Record 3, Main entry term, French
- rayl MKS
1, record 3, French, rayl%20MKS
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
L'impédance acoustique spécifique […] est le quotient complexe de la pression sonore par la vitesse de vibration. [L'unité de mesure est] le rayl MKS […] 1, record 3, French, - rayl%20MKS
Record number: 3, Textual support number: 1 OBS
MKS : mètre-kilogramme-seconde. 2, record 3, French, - rayl%20MKS
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2016-03-07
Record 4, English
Record 4, Subject field(s)
- Acoustics (Physics)
- Audio Technology
- Building Insulation and Acoustical Design
Record 4, Main entry term, English
- rate of decay of sound
1, record 4, English, rate%20of%20decay%20of%20sound
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- rate of decay 2, record 4, English, rate%20of%20decay
correct
- decay rate 3, record 4, English, decay%20rate
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The time rate at which the sound pressure level(or velocity, or sound-energy density level) is decreasing at a given point and at a given time. The practical unit is the decibel per second. 2, record 4, English, - rate%20of%20decay%20of%20sound
Record 4, French
Record 4, Domaine(s)
- Acoustique (Physique)
- Électroacoustique
- Isolation et acoustique architecturale
Record 4, Main entry term, French
- taux de décroissance du son
1, record 4, French, taux%20de%20d%C3%A9croissance%20du%20son
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- taux de la décroissance 2, record 4, French, taux%20de%20la%20d%C3%A9croissance
correct, masculine noun, standardized
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
En un point donné d'une salle et à une fréquence donnée, diminution par unité de temps du niveau de pression acoustique en ce point. 2, record 4, French, - taux%20de%20d%C3%A9croissance%20du%20son
Record number: 4, Textual support number: 1 OBS
taux de la décroissance : terme et définition normalisés par l'AFNOR et reproduits avec son autorisation. 3, record 4, French, - taux%20de%20d%C3%A9croissance%20du%20son
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Acústica (Física)
- Electroacústica
- Aislamiento y acústica arquitectónicos
Record 4, Main entry term, Spanish
- tasa de decrecimiento
1, record 4, Spanish, tasa%20de%20decrecimiento
feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2015-12-04
Record 5, English
Record 5, Subject field(s)
- Acoustics (Physics)
Record 5, Main entry term, English
- angular frequency
1, record 5, English, angular%20frequency
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- pulsatance 2, record 5, English, pulsatance
correct
- radian frequency 3, record 5, English, radian%20frequency
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
The frequency of a periodic process, wave system, etc, expressed in radians per second. 4, record 5, English, - angular%20frequency
Record number: 5, Textual support number: 1 CONT
Acoustic phase velocity(equal to radian frequency divided by phase change per unit distance) and axial sound pressure level distribution measurements were made in the square ducts with the probe microphone. 5, record 5, English, - angular%20frequency
Record number: 5, Textual support number: 1 PHR
Complex angular frequency. 6, record 5, English, - angular%20frequency
Record 5, French
Record 5, Domaine(s)
- Acoustique (Physique)
Record 5, Main entry term, French
- pulsation
1, record 5, French, pulsation
correct, feminine noun, standardized
Record 5, Abbreviations, French
Record 5, Synonyms, French
- fréquence angulaire 2, record 5, French, fr%C3%A9quence%20angulaire
avoid, feminine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Forme d'onde de courte durée (relativement à l'échelle de temps adoptée) et dont les valeurs initiales et finales sont les mêmes. 3, record 5, French, - pulsation
Record number: 5, Textual support number: 1 OBS
pulsation : terme normalisé par l'AFNOR. 4, record 5, French, - pulsation
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2014-11-19
Record 6, English
Record 6, Subject field(s)
- Flights (Air Transport)
- Acoustics (Physics)
- Noise Pollution
Record 6, Main entry term, English
- sound barrier
1, record 6, English, sound%20barrier
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- sonic barrier 2, record 6, English, sonic%20barrier
correct
- sonic wall 3, record 6, English, sonic%20wall
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
... the large increase in drag that acts upon an aircraft approaching acoustic velocity; the point at which the speed of sound is attained and existing subsonic and supersonic flow theories are rather indefinite. 4, record 6, English, - sound%20barrier
Record number: 6, Textual support number: 1 CONT
In the case of an airplane breaking the sound barrier ... it results in the sonic bang or boom on the ground. 5, record 6, English, - sound%20barrier
Record 6, French
Record 6, Domaine(s)
- Vols (Transport aérien)
- Acoustique (Physique)
- Pollution par le bruit
Record 6, Main entry term, French
- mur du son
1, record 6, French, mur%20du%20son
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- mur sonique 2, record 6, French, mur%20sonique
correct, masculine noun
- barrière du son 3, record 6, French, barri%C3%A8re%20du%20son
feminine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
[...] augmentation brutale de la traînée aérodynamique [d'un avion]. 4, record 6, French, - mur%20du%20son
Record number: 6, Textual support number: 1 CONT
Un avion qui passe le mur du son en piqué provoque un double bang [...] 5, record 6, French, - mur%20du%20son
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Vuelos (Transporte aéreo)
- Acústica (Física)
- Contaminación acústica
Record 6, Main entry term, Spanish
- barrera del sonido
1, record 6, Spanish, barrera%20del%20sonido
correct, feminine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Resistencia máxima que ofrece un medio material elástico a la progresión de un cuerpo que se desplaza en su seno, cuando su velocidad se acerca a la del sonido en dicho medio. 2, record 6, Spanish, - barrera%20del%20sonido
Record 7 - internal organization data 2014-01-23
Record 7, English
Record 7, Subject field(s)
- Acoustics (Physics)
- Atmospheric Physics
Record 7, Main entry term, English
- speed of sound
1, record 7, English, speed%20of%20sound
correct, NATO, standardized
Record 7, Abbreviations, English
Record 7, Synonyms, English
- sound velocity 2, record 7, English, sound%20velocity
correct
- sonic speed 3, record 7, English, sonic%20speed
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
The speed at which sound travels in a given medium under specified conditions. [Definition standardized by NATO.] 4, record 7, English, - speed%20of%20sound
Record number: 7, Textual support number: 1 OBS
The speed [of sound depends] on the temperature and the properties of the medium. 3, record 7, English, - speed%20of%20sound
Record number: 7, Textual support number: 2 OBS
The speed of sound at sea level in the International Standard Atmosphere is 1108 ft/second, 658 knots, 1215 km/hour. 4, record 7, English, - speed%20of%20sound
Record number: 7, Textual support number: 3 OBS
speed of sound: term standardized by ISO and NATO. 5, record 7, English, - speed%20of%20sound
Record 7, Key term(s)
- sound speed
- velocity of sound
Record 7, French
Record 7, Domaine(s)
- Acoustique (Physique)
- Physique de l'atmosphère
Record 7, Main entry term, French
- vitesse du son
1, record 7, French, vitesse%20du%20son
correct, feminine noun, NATO, standardized
Record 7, Abbreviations, French
Record 7, Synonyms, French
- célérité du son 2, record 7, French, c%C3%A9l%C3%A9rit%C3%A9%20du%20son
correct, feminine noun
- vitesse sonique 3, record 7, French, vitesse%20sonique
correct, feminine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 DEF
Vitesse à laquelle le son se déplace dans un milieu donné et dans des conditions bien définies. [Définition normalisée par l'OTAN.] 4, record 7, French, - vitesse%20du%20son
Record number: 7, Textual support number: 1 OBS
La vitesse du son au niveau de la mer dans l'atmosphère [type internationale] est de 1 108 pieds à la seconde, 658 nœuds ou 1 215 km à l'heure. 4, record 7, French, - vitesse%20du%20son
Record number: 7, Textual support number: 2 OBS
vitesse du son : terme normalisé par l'ISO et l'OTAN. 5, record 7, French, - vitesse%20du%20son
Record 7, Spanish
Record 7, Campo(s) temático(s)
- Acústica (Física)
- Física de la atmósfera
Record 7, Main entry term, Spanish
- velocidad del sonido
1, record 7, Spanish, velocidad%20del%20sonido
correct, feminine noun
Record 7, Abbreviations, Spanish
Record 7, Synonyms, Spanish
Record 7, Textual support, Spanish
Record number: 7, Textual support number: 1 DEF
Velocidad a la que viaja el sonido en un medio determinado bajo condiciones específicas. 2, record 7, Spanish, - velocidad%20del%20sonido
Record number: 7, Textual support number: 1 OBS
[La] Velocidad depende de la temperatura y de la naturaleza de ese medio. 3, record 7, Spanish, - velocidad%20del%20sonido
Record number: 7, Textual support number: 2 OBS
La velocidad del sonido a nivel del mar en una Atmósfera Internacional Normal es de 1.215 Km/h., 1.108 pies/segundo, 658 nudos. 2, record 7, Spanish, - velocidad%20del%20sonido
Record 8 - internal organization data 2012-09-05
Record 8, English
Record 8, Subject field(s)
- Acoustics (Physics)
- Flights (Air Transport)
- Aerodynamics and Theory of Gases
Record 8, Main entry term, English
- shock wave
1, record 8, English, shock%20wave
correct, standardized
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
A region of abrupt change in pressure and density moving ahead of the aircraft as a wave front at or above the speed of sound. 2, record 8, English, - shock%20wave
Record number: 8, Textual support number: 1 CONT
... a shock wave... can result not only from an explosion but is also emitted from an object like a missile or jet airplane moving faster than the velocity of sound. 3, record 8, English, - shock%20wave
Record number: 8, Textual support number: 1 OBS
shock wave: term standardized by ISO; term and definition standardized by the Glossary for Pilots and Air Traffic Services Personnel Committee. 4, record 8, English, - shock%20wave
Record 8, French
Record 8, Domaine(s)
- Acoustique (Physique)
- Vols (Transport aérien)
- Théorie des gaz et aérodynamique
Record 8, Main entry term, French
- onde de choc
1, record 8, French, onde%20de%20choc
correct, feminine noun, standardized
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 DEF
Région à l'avant de l'aéronef qui fait l'objet d'un changement brusque de pression et de densité et qui se déplace comme un front d'onde à une vitesse égale ou supérieure à celle du son. 2, record 8, French, - onde%20de%20choc
Record number: 8, Textual support number: 1 OBS
onde de choc : terme normalisé par l'ISO; terme et définition normalisés par le Comité sur le Glossaire à l'intention des pilotes et du personnel des services de la circulation aérienne. 3, record 8, French, - onde%20de%20choc
Record 8, Spanish
Record 8, Campo(s) temático(s)
- Acústica (Física)
- Vuelos (Transporte aéreo)
- Aerodinámica y teoría de los gases
Record 8, Main entry term, Spanish
- onda de choque
1, record 8, Spanish, onda%20de%20choque
correct, feminine noun
Record 8, Abbreviations, Spanish
Record 8, Synonyms, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2012-04-24
Record 9, English
Record 9, Subject field(s)
- Explosives and Pyrotechnical Materials (Industries)
- Blasting Work (Mining)
- Weapon Systems
Record 9, Main entry term, English
- low explosive
1, record 9, English, low%20explosive
correct, officially approved
Record 9, Abbreviations, English
Record 9, Synonyms, English
- deflagrating explosive 2, record 9, English, deflagrating%20explosive
correct, officially approved
- low velocity explosive 3, record 9, English, low%20velocity%20explosive
Record 9, Textual support, English
Record number: 9, Textual support number: 1 DEF
An explosive that burns at a velocity less than that of sound. 4, record 9, English, - low%20explosive
Record number: 9, Textual support number: 1 OBS
low explosive; deflagrating explosive: terms and definition officially approved by the Joint Terminology Panel and the Defence Terminology Standardization Board. 5, record 9, English, - low%20explosive
Record number: 9, Textual support number: 2 OBS
low explosive: term and definition officially approved by the Army Terminology Panel; term officially approved by the Engineering Terminology Working Group. 6, record 9, English, - low%20explosive
Record 9, French
Record 9, Domaine(s)
- Explosifs et artifices (Industries)
- Travail aux explosifs (Exploitation minière)
- Systèmes d'armes
Record 9, Main entry term, French
- explosif lent
1, record 9, French, explosif%20lent
correct, masculine noun, officially approved
Record 9, Abbreviations, French
Record 9, Synonyms, French
- explosif déflagrant 2, record 9, French, explosif%20d%C3%A9flagrant
correct, masculine noun, officially approved
- explosif soufflant 3, record 9, French, explosif%20soufflant
correct, masculine noun, officially approved
- explosif à faible vitesse de détonation 4, record 9, French, explosif%20%C3%A0%20faible%20vitesse%20de%20d%C3%A9tonation
correct, masculine noun
- explosif à basse vitesse de détonation 5, record 9, French, explosif%20%C3%A0%20basse%20vitesse%20de%20d%C3%A9tonation
masculine noun
Record 9, Textual support, French
Record number: 9, Textual support number: 1 DEF
Explosif qui brûle à une vitesse inférieure à celle du son. 6, record 9, French, - explosif%20lent
Record number: 9, Textual support number: 1 CONT
(Les) poudres ou explosifs déflagrants [...] sont les substances dont le régime normal de fonctionnement est le régime de déflagration stable. Leur vitesse de décomposition appelée vitesse de combustion est relativement faible (quelques centimètres par seconde) et les pressions engendrées sont au maximum de quelques milliers de bars. 7, record 9, French, - explosif%20lent
Record number: 9, Textual support number: 1 OBS
explosif déflagrant : terme uniformisé par le Groupe de travail de terminologie des munitions, le Groupe de travail de terminologie du génie et le Groupe de travail de terminologie des armes légères. 8, record 9, French, - explosif%20lent
Record number: 9, Textual support number: 2 OBS
explosif lent; explosif déflagrant : termes et définition uniformisés par le Groupe d’experts en terminologie interarmées et par le Conseil de normalisation de terminologie de la Défense. 9, record 9, French, - explosif%20lent
Record number: 9, Textual support number: 3 OBS
explosif déflagrant; explosif soufflant : termes uniformisés par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre. 10, record 9, French, - explosif%20lent
Record 9, Spanish
Record 9, Textual support, Spanish
Record 10 - internal organization data 2012-03-02
Record 10, English
Record 10, Subject field(s)
- Acoustics (Physics)
- Environmental Studies and Analyses
- Building Insulation and Acoustical Design
Record 10, Main entry term, English
- particle acceleration
1, record 10, English, particle%20acceleration
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
The measurable aspects of sound in common use are : particle displacement; particle velocity; particle acceleration; sound pressure. 1, record 10, English, - particle%20acceleration
Record 10, French
Record 10, Domaine(s)
- Acoustique (Physique)
- Études et analyses environnementales
- Isolation et acoustique architecturale
Record 10, Main entry term, French
- accélération acoustique
1, record 10, French, acc%C3%A9l%C3%A9ration%20acoustique
correct, feminine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
- accélération d'une particule 1, record 10, French, acc%C3%A9l%C3%A9ration%20d%27une%20particule
feminine noun
- accélération acoustique d'une particule 2, record 10, French, acc%C3%A9l%C3%A9ration%20acoustique%20d%27une%20particule
feminine noun
Record 10, Textual support, French
Record number: 10, Textual support number: 1 DEF
Écarts par unité de temps dans la vitesse de vibration d'une particule au passage d'une onde acoustique. 2, record 10, French, - acc%C3%A9l%C3%A9ration%20acoustique
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2012-01-04
Record 11, English
Record 11, Subject field(s)
- Blasting Work (Mining)
Record 11, Main entry term, English
- shock wave
1, record 11, English, shock%20wave
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
Record 11, Textual support, English
Record number: 11, Textual support number: 1 DEF
A fully developed compression wave of large amplitude, across which density, pressure, and particle velocity change drastically. 2, record 11, English, - shock%20wave
Record number: 11, Textual support number: 1 CONT
The wave sent out through the air by the discharge of the shot initiating an explosion. This wave travels with the velocity of sound... 2, record 11, English, - shock%20wave
Record 11, Key term(s)
- detonating impulse
Record 11, French
Record 11, Domaine(s)
- Travail aux explosifs (Exploitation minière)
Record 11, Main entry term, French
- onde de choc
1, record 11, French, onde%20de%20choc
correct, feminine noun
Record 11, Abbreviations, French
Record 11, Synonyms, French
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
La vitesse avec laquelle s'opère le transfert d'énergie d'activation entre produits de décomposition et molécules non décomposées donc la vitesse avec laquelle une substance se décompose, amène à distinguer : - les substances dont la vitesse de décomposition est relativement faible et [...] les substances dont la vitesse de décomposition est extrêmement élevée et qui sont désignées sous le nom d'«explosifs détonants, ou brisants», leur décomposition appelée détonation se propageant dans la masse entière de la substance sous l'apparence d'une onde de choc, qui s'accompagne d'effets mécaniques destructeurs. 2, record 11, French, - onde%20de%20choc
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2010-04-14
Record 12, English
Record 12, Subject field(s)
- Acoustics (Physics)
- Audio Technology
- Electrical Measuring Equipment
Record 12, Main entry term, English
- Rayleigh disk
1, record 12, English, Rayleigh%20disk
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 DEF
An acoustic radiometer consisting of a light disk suspended from a quartz thread [and] when exposed to a progressive sound wave, its torque can measure velocity. 2, record 12, English, - Rayleigh%20disk
Record 12, Key term(s)
- Rayleigh disc
Record 12, French
Record 12, Domaine(s)
- Acoustique (Physique)
- Électroacoustique
- Appareils de mesures (Électricité)
Record 12, Main entry term, French
- disque de Rayleigh
1, record 12, French, disque%20de%20Rayleigh
correct, masculine noun, standardized
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 DEF
Pendule de torsion destiné à mesurer la vitesse des particules d'un fluide (vitesse acoustique). [Définition normalisée par l'AFNOR et reproduite avec son autorisation.] 2, record 12, French, - disque%20de%20Rayleigh
Record number: 12, Textual support number: 1 OBS
disque de Rayleigh : terme normalisé par l'AFNOR. 3, record 12, French, - disque%20de%20Rayleigh
Record 12, Spanish
Record 12, Campo(s) temático(s)
- Acústica (Física)
- Electroacústica
- Equipo de medición eléctrica
Record 12, Main entry term, Spanish
- disco de Rayleigh
1, record 12, Spanish, disco%20de%20Rayleigh
correct, masculine noun
Record 12, Abbreviations, Spanish
Record 12, Synonyms, Spanish
Record 12, Textual support, Spanish
Record number: 12, Textual support number: 1 DEF
Péndulo de torsión, destinado para medir la velocidad acústica de partículas en un fluido. 1, record 12, Spanish, - disco%20de%20Rayleigh
Record 13 - internal organization data 2010-03-12
Record 13, English
Record 13, Subject field(s)
- Weather Stations and Meteorological Instruments and Equipment
Record 13, Main entry term, English
- sonic anemometer
1, record 13, English, sonic%20anemometer
correct
Record 13, Abbreviations, English
Record 13, Synonyms, English
- acoustic anemometer 2, record 13, English, acoustic%20anemometer
Record 13, Textual support, English
Record number: 13, Textual support number: 1 DEF
An anemometer which measures wind speed by means of the properties of wind-borne sound waves. 3, record 13, English, - sonic%20anemometer
Record number: 13, Textual support number: 1 CONT
The measurement of high frequency fluctuations of wind can also be made with hot wire and sonic anemometers... The sonic anemometer uses the difference in the velocity of propagation of two ultrasonic sound pulses, one moving with and one against the wind, to determine the wind speed. Sonic anemometers can detect wind speed fluctuations to about 50 Hz and 0. 1 m/s. 4, record 13, English, - sonic%20anemometer
Record number: 13, Textual support number: 2 CONT
sonic anemometer... operates on the principle that the propagation velocity of a sound wave in a moving medium is equal to the velocity of sound with respect to the medium plus the velocity of the medium. The sonic anemometer is an absolute instrument and has the advantages of a very short time-constant and an absence of moving mechanical parts. 3, record 13, English, - sonic%20anemometer
Record number: 13, Textual support number: 3 CONT
The acoustic anemometer uses the fact that wind affects the speed of a sound signal. 2, record 13, English, - sonic%20anemometer
Record number: 13, Textual support number: 1 PHR
3-axis, 3-D, 3-dimensional, Gill, omnidirectional, solent, three-axis, three-dimensional sonic anemometer. 5, record 13, English, - sonic%20anemometer
Record 13, French
Record 13, Domaine(s)
- Stations, instruments et équipements météorologiques
Record 13, Main entry term, French
- anémomètre sonique
1, record 13, French, an%C3%A9mom%C3%A8tre%20sonique
correct, masculine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
Record 13, Textual support, French
Record number: 13, Textual support number: 1 CONT
Les anémomètres soniques basés sur la variation de la vitesse de propagation du son dans l'air en mouvement : le son se propageant plus vite dans le sens du vent que dans le sens opposé. 2, record 13, French, - an%C3%A9mom%C3%A8tre%20sonique
Record number: 13, Textual support number: 1 PHR
Anémomètre sonique mono-dimensionnel, Solent, tridimensionnel 3, record 13, French, - an%C3%A9mom%C3%A8tre%20sonique
Record 13, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 2010-02-11
Record 14, English
Record 14, Subject field(s)
- Scientific Research Facilities
- Aerodynamics and Theory of Gases
- Aeronautical Engineering and Maintenance
Record 14, Main entry term, English
- subsonic tunnel 1, record 14, English, subsonic%20tunnel
Record 14, Abbreviations, English
Record 14, Synonyms, English
- high speed tunnel 1, record 14, English, high%20speed%20tunnel
Record 14, Textual support, English
Record number: 14, Textual support number: 1 OBS
subsonic or high-speeds just short of the velocity of sound(about 760 mph at sea level). 1, record 14, English, - subsonic%20tunnel
Record 14, French
Record 14, Domaine(s)
- Installations de recherche scientifique
- Théorie des gaz et aérodynamique
- Aérotechnique et maintenance
Record 14, Main entry term, French
- soufflerie subsonique 1, record 14, French, soufflerie%20subsonique
Record 14, Abbreviations, French
Record 14, Synonyms, French
Record 14, Textual support, French
Record number: 14, Textual support number: 1 OBS
les -- peuvent être à circuit ouvert, c'est-à-dire que l'air est continuellement aspiré et rejeté dans l'atmosphère, ou à circuit fermé. 1, record 14, French, - soufflerie%20subsonique
Record 14, Spanish
Record 14, Textual support, Spanish
Record 15 - internal organization data 2009-02-17
Record 15, English
Record 15, Subject field(s)
- Acoustics (Physics)
- Audio Technology
Record 15, Main entry term, English
- acoustic impedance
1, record 15, English, acoustic%20impedance
correct
Record 15, Abbreviations, English
Record 15, Synonyms, English
- acoustical impedance 2, record 15, English, acoustical%20impedance
correct
Record 15, Textual support, English
Record number: 15, Textual support number: 1 DEF
At a given surface, the complex ratio of effective sound pressure averaged over the surface to the effective flux(volume velocity or particle velocity multiplied by the surface area) through it. 3, record 15, English, - acoustic%20impedance
Record number: 15, Textual support number: 1 CONT
... the acoustic impedance for a spherical wave has both real and imaginary components, corresponding to resistance and reactance, respectively. 4, record 15, English, - acoustic%20impedance
Record 15, French
Record 15, Domaine(s)
- Acoustique (Physique)
- Électroacoustique
Record 15, Main entry term, French
- impédance acoustique
1, record 15, French, imp%C3%A9dance%20acoustique
correct, feminine noun
Record 15, Abbreviations, French
Record 15, Synonyms, French
Record 15, Textual support, French
Record number: 15, Textual support number: 1 DEF
Quotient complexe de la pression acoustique sur une surface donnée par le produit de la vitesse du mouvement vibratoire et de la surface considérée (produit que l'on appelle maintenant couramment flux de vitesse acoustique). 2, record 15, French, - imp%C3%A9dance%20acoustique
Record number: 15, Textual support number: 1 CONT
Impédance acoustique. [...] Z est en général composé d'une résistance et d'une réactance. 3, record 15, French, - imp%C3%A9dance%20acoustique
Record 15, Spanish
Record 15, Campo(s) temático(s)
- Acústica (Física)
- Electroacústica
Record 15, Main entry term, Spanish
- impedancia acústica
1, record 15, Spanish, impedancia%20ac%C3%BAstica
correct, feminine noun
Record 15, Abbreviations, Spanish
Record 15, Synonyms, Spanish
Record 15, Textual support, Spanish
Record number: 15, Textual support number: 1 DEF
Sobre una superficie, cociente complejo de presión acústica entre la velocidad de volumen a través de la superficie. 1, record 15, Spanish, - impedancia%20ac%C3%BAstica
Record 16 - internal organization data 2007-04-19
Record 16, English
Record 16, Subject field(s)
- Acoustics (Physics)
- Building Insulation and Acoustical Design
Record 16, Main entry term, English
- radiation pressure
1, record 16, English, radiation%20pressure
correct
Record 16, Abbreviations, English
Record 16, Synonyms, English
Record 16, Textual support, English
Record number: 16, Textual support number: 1 DEF
The average pressure exerted on a surface or interface between two media by a sound wave. 2, record 16, English, - radiation%20pressure
Record number: 16, Textual support number: 1 CONT
... there are at least two different kinds of radiation pressure... but the most practical from an experimental point of view is expressed simply as the ratio of the intensity(I) of the sound radiation to its velocity(V)... 3, record 16, English, - radiation%20pressure
Record 16, French
Record 16, Domaine(s)
- Acoustique (Physique)
- Isolation et acoustique architecturale
Record 16, Main entry term, French
- pression de radiation
1, record 16, French, pression%20de%20radiation
correct, feminine noun
Record 16, Abbreviations, French
Record 16, Synonyms, French
Record 16, Textual support, French
Record number: 16, Textual support number: 1 DEF
Partie isotrope de la tension de radiation. 1, record 16, French, - pression%20de%20radiation
Record 16, Spanish
Record 16, Campo(s) temático(s)
- Acústica (Física)
- Aislamiento y acústica arquitectónicos
Record 16, Main entry term, Spanish
- presión de radiación
1, record 16, Spanish, presi%C3%B3n%20de%20radiaci%C3%B3n
correct, feminine noun
Record 16, Abbreviations, Spanish
Record 16, Synonyms, Spanish
Record 16, Textual support, Spanish
Record number: 16, Textual support number: 1 DEF
Presión ejercida sobre una superficie por una onda sonora. 2, record 16, Spanish, - presi%C3%B3n%20de%20radiaci%C3%B3n
Record 17 - internal organization data 2007-04-17
Record 17, English
Record 17, Subject field(s)
- Blasting Work (Mining)
- Explosives and Pyrotechnical Materials (Industries)
- Fires and Explosions
- Shooting (Sports)
Record 17, Main entry term, English
- detonation
1, record 17, English, detonation
correct, standardized, officially approved
Record 17, Abbreviations, English
Record 17, Synonyms, English
Record 17, Textual support, English
Record number: 17, Textual support number: 1 DEF
An exothermic chemical reaction that propagates with such rapidity that the rate of advance of the reaction zone into the unreacted material exceeds the velocity of sound in the unreacted material; that is, the advancing reaction zone is preceded by a shock wave. 2, record 17, English, - detonation
Record number: 17, Textual support number: 1 OBS
detonation: term officially approved by the Engineering Terminology Working Group. 3, record 17, English, - detonation
Record number: 17, Textual support number: 2 OBS
detonation: term standardized by ISO. 4, record 17, English, - detonation
Record 17, French
Record 17, Domaine(s)
- Travail aux explosifs (Exploitation minière)
- Explosifs et artifices (Industries)
- Feux et explosions
- Tir (Sports)
Record 17, Main entry term, French
- détonation
1, record 17, French, d%C3%A9tonation
correct, feminine noun, standardized, officially approved
Record 17, Abbreviations, French
Record 17, Synonyms, French
Record 17, Textual support, French
Record number: 17, Textual support number: 1 DEF
Décomposition extrêmement rapide d'un explosif qui se caractérise par la propagation, à une vitesse de plusieurs kilomètres par seconde, d'une onde de pression dans la substance explosive. 2, record 17, French, - d%C3%A9tonation
Record number: 17, Textual support number: 1 OBS
Elle est généralement accompagnée d'un bruit fort et sec. 2, record 17, French, - d%C3%A9tonation
Record number: 17, Textual support number: 2 OBS
détonation : terme normalisé par l'ISO. 3, record 17, French, - d%C3%A9tonation
Record number: 17, Textual support number: 3 OBS
détonation : terme uniformisé par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre, par le Groupe de travail de terminologie des armes légères, par le Groupe de travail de terminologie des munitions, et par le Groupe de travail de terminologie du génie. 4, record 17, French, - d%C3%A9tonation
Record 17, Spanish
Record 17, Campo(s) temático(s)
- Trabajo con explosivos (Explotación minera)
- Explosivos y fuegos de artificio (Industrias)
- Fuegos y explosiones
- Tiro (Deportes)
Record 17, Main entry term, Spanish
- detonación
1, record 17, Spanish, detonaci%C3%B3n
correct, feminine noun
Record 17, Abbreviations, Spanish
Record 17, Synonyms, Spanish
Record 17, Textual support, Spanish
Record number: 17, Textual support number: 1 DEF
Reacción de combustión de una sustancia que se propaga a toda su masa con una velocidad supersónica. Va acompañada por una onda de choque asociada al frente de [la] llama. 2, record 17, Spanish, - detonaci%C3%B3n
Record 18 - internal organization data 2007-03-22
Record 18, English
Record 18, Subject field(s)
- Acoustics (Physics)
Record 18, Main entry term, English
- acoustic particle
1, record 18, English, acoustic%20particle
correct
Record 18, Abbreviations, English
Record 18, Synonyms, English
- acoustical particle 2, record 18, English, acoustical%20particle
correct
- sound particle 2, record 18, English, sound%20particle
correct
Record 18, Textual support, English
Record number: 18, Textual support number: 1 DEF
[A] volume element of the acoustic continuum theory ... 1, record 18, English, - acoustic%20particle
Record number: 18, Textual support number: 1 OBS
[Not to be] confused with the suspended particles. 1, record 18, English, - acoustic%20particle
Record number: 18, Textual support number: 2 OBS
The "acoustic particle velocity" is the time derivative of the periodic acoustic particle displacement caused by the regarded sound wave. 1, record 18, English, - acoustic%20particle
Record 18, French
Record 18, Domaine(s)
- Acoustique (Physique)
Record 18, Main entry term, French
- particule sonore
1, record 18, French, particule%20sonore
feminine noun
Record 18, Abbreviations, French
Record 18, Synonyms, French
Record 18, Textual support, French
Record number: 18, Textual support number: 1 DEF
Élément de volume de la théorie du continuum acoustique. 2, record 18, French, - particule%20sonore
Record 18, Spanish
Record 18, Textual support, Spanish
Record 19 - internal organization data 2007-03-18
Record 19, English
Record 19, Subject field(s)
- Acoustics (Physics)
Record 19, Main entry term, English
- pressure zone
1, record 19, English, pressure%20zone
correct
Record 19, Abbreviations, English
Record 19, Synonyms, English
Record 19, Textual support, English
Record number: 19, Textual support number: 1 CONT
pressure zone. As sound waves strike a solid surface, the particle velocity is zero at the surface and the pressure is high, thus creating a high-pressure layer near the surface. 1, record 19, English, - pressure%20zone
Record 19, French
Record 19, Domaine(s)
- Acoustique (Physique)
Record 19, Main entry term, French
- zone de pression
1, record 19, French, zone%20de%20pression
correct, feminine noun
Record 19, Abbreviations, French
Record 19, Synonyms, French
Record 19, Textual support, French
Record number: 19, Textual support number: 1 DEF
Couche de haute pression créée à proximité d'une surface solide lorsqu'une onde sonore frappe cette dernière, la vitesse des particules à la surface étant alors nulle et la pression élevée. 2, record 19, French, - zone%20de%20pression
Record 19, Spanish
Record 19, Textual support, Spanish
Record 20 - internal organization data 2006-02-01
Record 20, English
Record 20, Subject field(s)
- Small Arms
Record 20, Main entry term, English
- n-wave
1, record 20, English, n%2Dwave
correct
Record 20, Abbreviations, English
Record 20, Synonyms, English
Record 20, Textual support, English
Record number: 20, Textual support number: 1 DEF
[A wave] generated at the base of a projectile when its velocity exceeds the speed of sound. 1, record 20, English, - n%2Dwave
Record 20, French
Record 20, Domaine(s)
- Armes légères
Record 20, Main entry term, French
- onde de culot
1, record 20, French, onde%20de%20culot
correct, feminine noun, officially approved
Record 20, Abbreviations, French
Record 20, Synonyms, French
Record 20, Textual support, French
Record number: 20, Textual support number: 1 DEF
Onde engendrée au culot d'un projectile lorsque sa vitesse dépasse celle du son. 1, record 20, French, - onde%20de%20culot
Record number: 20, Textual support number: 1 OBS
Terme et définition uniformisés par le Groupe de travail de terminologie des armes légères. 2, record 20, French, - onde%20de%20culot
Record 20, Spanish
Record 20, Textual support, Spanish
Record 21 - internal organization data 2005-01-28
Record 21, English
Record 21, Subject field(s)
- Blasting Work (Mining)
- Physics
Record 21, Main entry term, English
- explosion wave
1, record 21, English, explosion%20wave
correct
Record 21, Abbreviations, English
Record 21, Synonyms, English
Record 21, Textual support, English
Record number: 21, Textual support number: 1 CONT
Explosion wave. From the French, onde explosive, and coined by Bertholet, signifying that wave or flame which passes through a uniform gaseous mixture with a permanent maximum velocity. The rate of the explosion wave is a definite physical constant for each mixture. The explosion wave travels with the velocity of sound in the burning gas which itself is moving rapidly forward en masse in the same direction, so that the explosion wave is propagated far more rapidly than sound travels in the unburned gas. 1, record 21, English, - explosion%20wave
Record 21, French
Record 21, Domaine(s)
- Travail aux explosifs (Exploitation minière)
- Physique
Record 21, Main entry term, French
- onde explosive
1, record 21, French, onde%20explosive
correct, feminine noun
Record 21, Abbreviations, French
Record 21, Synonyms, French
Record 21, Textual support, French
Record number: 21, Textual support number: 1 CONT
La sensibilité à l'onde explosive est fonction de la densité de l'explosif et de son état (pulvérulent, gélatineux, fondu). Quand la densité est trop élevée, surtout avec les explosifs nitratés, l'onde explosive provoquée par le détonateur peut ne pas agir, ou s'arrêter en cours de propagation : on a alors un raté, ou un culot d'explosif. 2, record 21, French, - onde%20explosive
Record 21, Spanish
Record 21, Campo(s) temático(s)
- Trabajo con explosivos (Explotación minera)
- Física
Record 21, Main entry term, Spanish
- onda explosiva
1, record 21, Spanish, onda%20explosiva
correct, feminine noun
Record 21, Abbreviations, Spanish
Record 21, Synonyms, Spanish
Record 21, Textual support, Spanish
Record number: 21, Textual support number: 1 DEF
Onda con que se propaga la detonación en una masa gaseosa y que puede ser comparada con una onda de choque, cuyo paso provoca la combustión del gas. 1, record 21, Spanish, - onda%20explosiva
Record 22 - internal organization data 2003-11-14
Record 22, English
Record 22, Subject field(s)
- Acoustics (Physics)
- Environmental Studies and Analyses
- Building Insulation and Acoustical Design
Record 22, Main entry term, English
- particle velocity
1, record 22, English, particle%20velocity
correct
Record 22, Abbreviations, English
Record 22, Synonyms, English
Record 22, Textual support, English
Record number: 22, Textual support number: 1 DEF
In a progressive or standing sound wave, the longitudinal alternating velocity of the air or fluid particles, taken either as the maximum or r. m. s. velocity. 2, record 22, English, - particle%20velocity
Record number: 22, Textual support number: 1 CONT
the measurable aspects of sound in common use are : particle displacement; particle velocity; particle acceleration; sound pressure 3, record 22, English, - particle%20velocity
Record 22, French
Record 22, Domaine(s)
- Acoustique (Physique)
- Études et analyses environnementales
- Isolation et acoustique architecturale
Record 22, Main entry term, French
- vitesse acoustique d'une particule
1, record 22, French, vitesse%20acoustique%20d%27une%20particule
correct, feminine noun
Record 22, Abbreviations, French
Record 22, Synonyms, French
- vitesse acoustique 2, record 22, French, vitesse%20acoustique
correct, feminine noun, standardized
- vitesse d'une particule 3, record 22, French, vitesse%20d%27une%20particule
correct, feminine noun, standardized
Record 22, Textual support, French
Record number: 22, Textual support number: 1 DEF
Dérivée géométrique par rapport au temps du déplacement d'une particule. 4, record 22, French, - vitesse%20acoustique%20d%27une%20particule
Record number: 22, Textual support number: 1 OBS
vitesse acoustique; vitesse d'une particule : termes normalisés par l'AFNOR. 1, record 22, French, - vitesse%20acoustique%20d%27une%20particule
Record 22, Spanish
Record 22, Campo(s) temático(s)
- Acústica (Física)
- Estudios y análisis del medio ambiente
- Aislamiento y acústica arquitectónicos
Record 22, Main entry term, Spanish
- velocidad acústica
1, record 22, Spanish, velocidad%20ac%C3%BAstica
correct, feminine noun
Record 22, Abbreviations, Spanish
Record 22, Synonyms, Spanish
Record 22, Textual support, Spanish
Record number: 22, Textual support number: 1 DEF
Variación de la elongación acústica con el tiempo. 1, record 22, Spanish, - velocidad%20ac%C3%BAstica
Record 22, Key term(s)
- velocidad de una partícula
Record 23 - internal organization data 2003-06-12
Record 23, English
Record 23, Subject field(s)
- Measuring Instruments (Engineering)
- Winemaking
Record 23, Main entry term, English
- density sensor
1, record 23, English, density%20sensor
correct
Record 23, Abbreviations, English
Record 23, Synonyms, English
Record 23, Textual support, English
Record number: 23, Textual support number: 1 CONT
The density of liquids can be measured with acoustic techniques. This is done by measuring sound velocity and acoustic impedance of the liquid. The presented work describes a novel ultrasonic density sensor that determines the sound reflection coefficient to measure the acoustic impedance of the liquid. It aims to be suitable for industrial applications by achieving a high measurement accuracy while meeting the mechanical and chemical conditions of the process. The high accuracy is obtained with the help of an additional reference measurement inside the sensor. 2, record 23, English, - density%20sensor
Record 23, French
Record 23, Domaine(s)
- Instruments de mesure (Ingénierie)
- Industrie vinicole
Record 23, Main entry term, French
- capteur de densité
1, record 23, French, capteur%20de%20densit%C3%A9
correct, masculine noun
Record 23, Abbreviations, French
Record 23, Synonyms, French
Record 23, Textual support, French
Record number: 23, Textual support number: 1 CONT
Le Densima X, «le premier capteur de densité à installation simple», selon la société Densiline, permet la mesure en permanence de la densité des liquides contenus dans des cuves ou dans des canalisations à faible débit et à faible pression. 1, record 23, French, - capteur%20de%20densit%C3%A9
Record 23, Spanish
Record 23, Textual support, Spanish
Record 24 - internal organization data 2003-01-27
Record 24, English
Record 24, Subject field(s)
- Air Conditioning and Heating
- Building Ventilation
- Noise Pollution
Record 24, Main entry term, English
- sound liner
1, record 24, English, sound%20liner
correct
Record 24, Abbreviations, English
Record 24, Synonyms, English
- soundliner 2, record 24, English, soundliner
Record 24, Textual support, English
Record number: 24, Textual support number: 1 CONT
Along with the obvious restroom facilities and concession stands, our system included four Trane gas electric rooftop package economizers, high volume, and low velocity diffusers for quietness and ductwork with 2-inch sound liner for sound attenuation. 1, record 24, English, - sound%20liner
Record number: 24, Textual support number: 2 CONT
High dissemination of fungal spores: contaminated soundliner in operating AC [air conditioning] unit 2, record 24, English, - sound%20liner
Record 24, French
Record 24, Domaine(s)
- Conditionnement de l'air et chauffage
- Ventilation (Construction)
- Pollution par le bruit
Record 24, Main entry term, French
- doublage acoustique
1, record 24, French, doublage%20acoustique
masculine noun
Record 24, Abbreviations, French
Record 24, Synonyms, French
- matériau insonorisant 2, record 24, French, mat%C3%A9riau%20insonorisant
masculine noun
Record 24, Textual support, French
Record number: 24, Textual support number: 1 CONT
Confondre bruit de bouche et bruit de caisse d'un ventilateur. Le bruit de bouche est celui qui va être véhiculé dans le réseau. Le bruit de caisse est celui qui est rayonné par la carcasse du ventilateur que l'on retrouvera dans un local technique, en toiture ou tout simplement dans le local en question si celui-ci se trouve à l'intérieur. Généralement le bruit de bouche est plus intense, il se traite par silencieux et le bruit de caisse, s'il doit être atténué se traite par capotage, doublage acoustique ou effet d'écran. 1, record 24, French, - doublage%20acoustique
Record number: 24, Textual support number: 2 CONT
En ce qui concerne les bruits causés par le matériel stationnaire (ventilateurs, moteurs, machines), on peut utiliser des matériaux insonorisants pour étouffer le son ou construire des déflecteurs pour détourner le bruit. 2, record 24, French, - doublage%20acoustique
Record 24, Spanish
Record 24, Textual support, Spanish
Record 25 - internal organization data 2002-07-02
Record 25, English
Record 25, Subject field(s)
- Cooling and Ventilating Systems
Record 25, Main entry term, English
- turbulence noise
1, record 25, English, turbulence%20noise
correct
Record 25, Abbreviations, English
Record 25, Synonyms, English
Record 25, Textual support, English
Record number: 25, Textual support number: 1 OBS
Successful vent design often requires skillful balancing of the vent dimensions so that the vent is big enough to avoid vent turbulence noise, small enough to fit in the box and, if the box is a bandpass design, small enough to avoid vent resonance peak problems. 1, record 25, English, - turbulence%20noise
Record number: 25, Textual support number: 2 OBS
The vent should be large enough so that the air velocity inside it never gets too high. This prevents the unwanted vent noise that results from air turbulence in and around the vent. A general rule used by many is to prevent the vent velocity from rising above 10% of the speed of sound(or about 34 m/s). 1, record 25, English, - turbulence%20noise
Record 25, French
Record 25, Domaine(s)
- Systèmes de refroidissement et de ventilation
Record 25, Main entry term, French
- bruit de turbulence
1, record 25, French, bruit%20de%20turbulence
correct, masculine noun
Record 25, Abbreviations, French
Record 25, Synonyms, French
Record 25, Textual support, French
Record number: 25, Textual support number: 1 CONT
Au point de vue de la nature du bruit émis, qu'il soit de bouche ou de carcasse, l'on distingue : a) Le bruit de turbulence, dû à la mise en vitesse de l'air dans la roue et l'enveloppe du ventilateur: pour un genre de machine donné, il ne dépend guère que des caractéristiques fournies. 1, record 25, French, - bruit%20de%20turbulence
Record 25, Spanish
Record 25, Textual support, Spanish
Record 26 - internal organization data 2002-03-11
Record 26, English
Record 26, Subject field(s)
- Energy Transformation
- Thermonuclear fusion
- Atomic Physics
Record 26, Main entry term, English
- ion acoustic wave
1, record 26, English, ion%20acoustic%20wave
correct, standardized
Record 26, Abbreviations, English
Record 26, Synonyms, English
- pseudosonic wave 2, record 26, English, pseudosonic%20wave
correct, standardized
- ion sound wave 2, record 26, English, ion%20sound%20wave
correct, standardized
Record 26, Textual support, English
Record number: 26, Textual support number: 1 DEF
Low frequency ion waves in which the ion and electron displacement velocities are approximately equal. 3, record 26, English, - ion%20acoustic%20wave
Record number: 26, Textual support number: 1 OBS
There is no dispersion, since their phase velocity is independent of their frequency. In view of these two properties such waves resemble ordinary sound waves, hence their name. 3, record 26, English, - ion%20acoustic%20wave
Record number: 26, Textual support number: 2 OBS
ion acoustic wave; pseudosonic wave; ion sound wave: terms standardized by ISO. 4, record 26, English, - ion%20acoustic%20wave
Record 26, French
Record 26, Domaine(s)
- Transformation de l'énergie
- Fusion thermonucléaire
- Physique atomique
Record 26, Main entry term, French
- onde acoustique ionique
1, record 26, French, onde%20acoustique%20ionique
correct, feminine noun, standardized
Record 26, Abbreviations, French
Record 26, Synonyms, French
- onde pseudosonore 2, record 26, French, onde%20pseudosonore
correct, feminine noun, standardized
Record 26, Textual support, French
Record number: 26, Textual support number: 1 DEF
Ondes ioniques de basse fréquence dans lesquelles les vitesses de déplacement des ions et des électrons sont approximativement égales. Elles ne présentent pas de dispersion, leur vitesse de phase étant indépendante de leur fréquence. 3, record 26, French, - onde%20acoustique%20ionique
Record number: 26, Textual support number: 1 OBS
Ces deux propriétés permettent de rapprocher ces ondes des ondes sonores habituelles d'où leur nom. Elles n'en diffèrent que par un défaut de neutralité (proportionnel à l'amplitude de l'onde et au carré de sa fréquence), qui crée un champ électrique de charge d'espace, d'où provient le couplage entre mouvements collectifs des ions et des électrons. 3, record 26, French, - onde%20acoustique%20ionique
Record number: 26, Textual support number: 2 OBS
onde acoustique ionique; onde pseudosonore : termes normalisés par l'ISO. 4, record 26, French, - onde%20acoustique%20ionique
Record 26, Spanish
Record 26, Textual support, Spanish
Record 27 - internal organization data 2001-08-15
Record 27, English
Record 27, Subject field(s)
- Radio Transmission and Reception
- Electronic Circuits Technology
- Acoustics (Physics)
- Waveguides
Record 27, Main entry term, English
- characteristic acoustic impedance
1, record 27, English, characteristic%20acoustic%20impedance
correct
Record 27, Abbreviations, English
Record 27, Synonyms, English
- characteristic impedance 1, record 27, English, characteristic%20impedance
correct
- characteristic acoustical impedance 2, record 27, English, characteristic%20acoustical%20impedance
correct
Record 27, Textual support, English
Record number: 27, Textual support number: 1 DEF
The ratio of effective sound pressure at a point to the particle velocity at that point in a free, progressive wave. 1, record 27, English, - characteristic%20acoustic%20impedance
Record 27, French
Record 27, Domaine(s)
- Émission et réception radio
- Technologie des circuits électroniques
- Acoustique (Physique)
- Guides d'ondes
Record 27, Main entry term, French
- impédance acoustique caractéristique
1, record 27, French, imp%C3%A9dance%20acoustique%20caract%C3%A9ristique
correct, feminine noun
Record 27, Abbreviations, French
Record 27, Synonyms, French
- impédance caractéristique 1, record 27, French, imp%C3%A9dance%20caract%C3%A9ristique
correct, feminine noun
Record 27, Textual support, French
Record number: 27, Textual support number: 1 DEF
En un point d'un milieu, dans le cas d'une onde plane progressive, quotient complexe de la pression acoustique en ce point par la vitesse de la particule au même point. 1, record 27, French, - imp%C3%A9dance%20acoustique%20caract%C3%A9ristique
Record 27, Spanish
Record 27, Textual support, Spanish
Record 28 - internal organization data 2001-01-17
Record 28, English
Record 28, Subject field(s)
- Geology
- Geophysics
Record 28, Main entry term, English
- sonic
1, record 28, English, sonic
correct, adjective
Record 28, Abbreviations, English
Record 28, Synonyms, English
Record 28, Textual support, English
Record number: 28, Textual support number: 1 DEF
Pertaining to sound; usually used in sonic velocity, i. e., the speed of sound or a stress wave in a rock or other material. 1, record 28, English, - sonic
Record 28, French
Record 28, Domaine(s)
- Géologie
- Géophysique
Record 28, Main entry term, French
- acoustique
1, record 28, French, acoustique
correct, adjective
Record 28, Abbreviations, French
Record 28, Synonyms, French
Record 28, Textual support, French
Record number: 28, Textual support number: 1 DEF
Qui appartient au son, habituellement utilisé pour la vitesse du son, c'est-à-dire, la vitesse du son ou l'onde de contrainte dans une roche ou un autre matériau. 2, record 28, French, - acoustique
Record number: 28, Textual support number: 2 DEF
Relatif à la perception des sons [...] 3, record 28, French, - acoustique
Record 28, Spanish
Record 28, Textual support, Spanish
Record 29 - internal organization data 1999-10-18
Record 29, English
Record 29, Subject field(s)
- Acoustics (Physics)
Record 29, Main entry term, English
- acoustic wave velocity
1, record 29, English, acoustic%20wave%20velocity
correct
Record 29, Abbreviations, English
Record 29, Synonyms, English
- wave velocity 2, record 29, English, wave%20velocity
correct
- velocity of sound waves 2, record 29, English, velocity%20of%20sound%20%20waves
correct
Record 29, Textual support, English
Record number: 29, Textual support number: 1 DEF
Vector quantity that specifies the speed and direction with which a sound wave travels through a medium. 1, record 29, English, - acoustic%20wave%20velocity
Record number: 29, Textual support number: 1 CONT
Because the disturbance ... in a wave travels a distance of one wavelength in one period, the product of wavelength and frequency equals the wave velocity. 2, record 29, English, - acoustic%20wave%20velocity
Record 29, Key term(s)
- velocity of wave
- velocity of waves
Record 29, French
Record 29, Domaine(s)
- Acoustique (Physique)
Record 29, Main entry term, French
- vitesse de propagation de l'onde
1, record 29, French, vitesse%20de%20propagation%20de%20l%27onde
correct, feminine noun
Record 29, Abbreviations, French
Record 29, Synonyms, French
- célérité de l'onde 2, record 29, French, c%C3%A9l%C3%A9rit%C3%A9%20de%20l%27onde
correct, feminine noun
Record 29, Textual support, French
Record number: 29, Textual support number: 1 CONT
[...] le son se déplace en ondes sonores ou acoustiques. Une image [...] pour illustrer ce phénomène est celle des rides se déplaçant sur une nappe d'eau dans laquelle on a jeté une pierre. La distance parcourue par une ride dans l'unité de temps s'appelle la célérité de l'onde [...] 2, record 29, French, - vitesse%20de%20propagation%20de%20l%27onde
Record 29, Spanish
Record 29, Textual support, Spanish
Record 30 - internal organization data 1998-12-22
Record 30, English
Record 30, Subject field(s)
- Audio Technology
Record 30, Main entry term, English
- velocity microphone 1, record 30, English, velocity%20microphone
Record 30, Abbreviations, English
Record 30, Synonyms, English
Record 30, Textual support, English
Record number: 30, Textual support number: 1 DEF
A microphone in which the electric output substantially corresponds to the instantaneous particle velocity in the impressed sound wave. 1, record 30, English, - velocity%20microphone
Record 30, Key term(s)
- velocity type microphone
- velocity operated microphone
Record 30, French
Record 30, Domaine(s)
- Électroacoustique
Record 30, Main entry term, French
- microphone à vitesse
1, record 30, French, microphone%20%C3%A0%20vitesse
masculine noun
Record 30, Abbreviations, French
Record 30, Synonyms, French
Record 30, Textual support, French
Record number: 30, Textual support number: 1 DEF
Microphone dont l'énergie électrique de sortie correspond à la vitesse des particules instantanée dans l'onde acoustique appliquée. 1, record 30, French, - microphone%20%C3%A0%20vitesse
Record 30, Spanish
Record 30, Textual support, Spanish
Record 31 - internal organization data 1998-06-29
Record 31, English
Record 31, Subject field(s)
- Acoustics (Physics)
Record 31, Main entry term, English
- acoustic dispersion
1, record 31, English, acoustic%20dispersion
correct
Record 31, Abbreviations, English
Record 31, Synonyms, English
- sound dispersion 2, record 31, English, sound%20dispersion
correct
- dispersion 3, record 31, English, dispersion
correct
Record 31, Textual support, English
Record number: 31, Textual support number: 1 DEF
A complex sound wave's separation into its frequency components as it passes through a medium; usually measured by the rate of change of velocity with frequency. 1, record 31, English, - acoustic%20dispersion
Record number: 31, Textual support number: 1 CONT
... under what may be termed ordinary conditions, the velocity of sound... is independent of the frequency-i. e., there is no so-called dispersion... 2, record 31, English, - acoustic%20dispersion
Record number: 31, Textual support number: 2 CONT
When the velocity of sound... becomes dependent on frequency, the shape of a complex wave changes during propagation and dispersion is said to occur. 4, record 31, English, - acoustic%20dispersion
Record 31, French
Record 31, Domaine(s)
- Acoustique (Physique)
Record 31, Main entry term, French
- dispersion acoustique
1, record 31, French, dispersion%20acoustique
correct, feminine noun, standardized
Record 31, Abbreviations, French
Record 31, Synonyms, French
Record 31, Textual support, French
Record number: 31, Textual support number: 1 DEF
Phénomène causé par la variation de la vitesse du son en fonction de la fréquence, comme par exemple la séparation d'une onde acoustique complexe en ses différentes composantes. [Terme et définition normalisés par l'AFNOR et reproduits avec son autorisation.] 1, record 31, French, - dispersion%20acoustique
Record number: 31, Textual support number: 1 OBS
Le terme «diffusion» ne doit pas être employé dans ce sens [Justification reproduite avec l'autorisation de l'AFNOR.] 1, record 31, French, - dispersion%20acoustique
Record 31, Spanish
Record 31, Textual support, Spanish
Record 32 - internal organization data 1987-03-05
Record 32, English
Record 32, Subject field(s)
- Building Insulation and Acoustical Design
- Noise Pollution
- Air Conditioning and Heating
Record 32, Main entry term, English
- acoustical discharge chamber
1, record 32, English, acoustical%20discharge%20chamber
correct
Record 32, Abbreviations, English
Record 32, Synonyms, English
Record 32, Textual support, English
Record number: 32, Textual support number: 1 CONT
If the velocity cannot be decreased, noise may be reduced by using acoustical discharge chambers or lining the ducts with sound absorbing material such as fiberglass. 1, record 32, English, - acoustical%20discharge%20chamber
Record 32, French
Record 32, Domaine(s)
- Isolation et acoustique architecturale
- Pollution par le bruit
- Conditionnement de l'air et chauffage
Record 32, Main entry term, French
- chambre de détente
1, record 32, French, chambre%20de%20d%C3%A9tente
correct, feminine noun
Record 32, Abbreviations, French
Record 32, Synonyms, French
- chambre d'absorption 2, record 32, French, chambre%20d%27absorption
correct, feminine noun
Record 32, Textual support, French
Record number: 32, Textual support number: 1 CONT
Protection contre les bruits dans les conduits. Les bruits peuvent être diminués (...) en veillant (...) à l'étanchéité des joints et des raccordements; par des chambres de détente (ou chambres d'absorption); par le traitement éventuel des bouches tapissées intérieurement d'un matériau souple (...) 1, record 32, French, - chambre%20de%20d%C3%A9tente
Record 32, Spanish
Record 32, Textual support, Spanish
Record 33 - internal organization data 1986-06-25
Record 33, English
Record 33, Subject field(s)
- Acoustics (Physics)
Record 33, Main entry term, English
- finite velocity
1, record 33, English, finite%20velocity
correct
Record 33, Abbreviations, English
Record 33, Synonyms, English
Record 33, Textual support, English
Record number: 33, Textual support number: 1 CONT
A sound wave in air or any fluid medium is... a compressional wave. The simplest example is the pressure pulse produced by the firing of a pistol... : it takes time for such a pulse to travel through the medium, and hence such a wave has a finite velocity. 1, record 33, English, - finite%20velocity
Record 33, French
Record 33, Domaine(s)
- Acoustique (Physique)
Record 33, Main entry term, French
- vitesse finie
1, record 33, French, vitesse%20finie
correct, feminine noun
Record 33, Abbreviations, French
Record 33, Synonyms, French
Record 33, Textual support, French
Record number: 33, Textual support number: 1 CONT
(...) le son se propage à une vitesse finie. 1, record 33, French, - vitesse%20finie
Record 33, Spanish
Record 33, Textual support, Spanish
Record 34 - internal organization data 1986-06-02
Record 34, English
Record 34, Subject field(s)
- Acoustics (Physics)
- Building Insulation and Acoustical Design
Record 34, Main entry term, English
- transmitted sound energy
1, record 34, English, transmitted%20sound%20energy
proposal
Record 34, Abbreviations, English
Record 34, Synonyms, English
- transmitted energy 1, record 34, English, transmitted%20energy
proposal
Record 34, Textual support, English
Record number: 34, Textual support number: 1 OBS
When a sound wave strikes the interface separating two media of different physical properties ... some of the wave disturbance is reflected and some transmitted ... through the second medium. The transmission of the sound energy is thus affected by the presence of the boundary. 2, record 34, English, - transmitted%20sound%20energy
Record number: 34, Textual support number: 2 OBS
Transmission loss is the difference in decibels between the sound energy striking the surface separating two spaces and the energy transmitted. 3, record 34, English, - transmitted%20sound%20energy
Record number: 34, Textual support number: 3 OBS
In the case in which the density times velocity... is the same in both media... all the sound energy is transmitted across the boundary, and none is reflected. 2, record 34, English, - transmitted%20sound%20energy
Record 34, French
Record 34, Domaine(s)
- Acoustique (Physique)
- Isolation et acoustique architecturale
Record 34, Main entry term, French
- énergie sonore transmise
1, record 34, French, %C3%A9nergie%20sonore%20transmise
correct, feminine noun
Record 34, Abbreviations, French
Record 34, Synonyms, French
- énergie transmise 1, record 34, French, %C3%A9nergie%20transmise
correct, feminine noun
- énergie acoustique transmise 2, record 34, French, %C3%A9nergie%20acoustique%20transmise
correct, feminine noun
Record 34, Textual support, French
Record number: 34, Textual support number: 1 OBS
Quand une onde acoustique rencontre une paroi, une partie de l'énergie incidente (...) est réfléchie (...), une partie est absorbée (...) et la troisième partie est transmise (...) 1, record 34, French, - %C3%A9nergie%20sonore%20transmise
Record number: 34, Textual support number: 2 OBS
L'énergie acoustique est (...) transmise d'un local à l'autre par toutes les parois communes aux deux locaux. 3, record 34, French, - %C3%A9nergie%20sonore%20transmise
Record 34, Spanish
Record 34, Textual support, Spanish
Record 35 - internal organization data 1981-03-27
Record 35, English
Record 35, Subject field(s)
- Hydrology and Hydrography
- Radar, Radio Guidance and Goniometry
- Statistical Graphs and Diagrams
Record 35, Main entry term, English
- velocity profile
1, record 35, English, velocity%20profile
correct
Record 35, Abbreviations, English
Record 35, Synonyms, English
Record 35, Textual support, English
Record number: 35, Textual support number: 1 CONT
Because of variations of sound velocity with depth, sound rays are bent as they propagate from point to point.... In order to trace the path of a ray, the velocity profile is divided into layers of constant velocity and paths are then computed by Snell' s law for rays leaving the source at different angles. In earlier work various types of analog computers were used but digital computers, are now favoured. 1, record 35, English, - velocity%20profile
Record 35, French
Record 35, Domaine(s)
- Hydrologie et hydrographie
- Radar, radioguidage et radiogoniométrie
- Diagrammes et graphiques (Statistique)
Record 35, Main entry term, French
- profil de célérité
1, record 35, French, profil%20de%20c%C3%A9l%C3%A9rit%C3%A9
correct, masculine noun
Record 35, Abbreviations, French
Record 35, Synonyms, French
Record 35, Textual support, French
Record number: 35, Textual support number: 1 CONT
[...] l'importance des relevés bathythermiques traduits en profils de célérité, c'est-à-dire en vitesse du son en fonction de l'immersion, est grande en sonar. Ces profils servent à établir (de façon instantanée dans les traceurs de rayons modernes) les trajets sonores à partir d'une source placée de façon quelconque. 2, record 35, French, - profil%20de%20c%C3%A9l%C3%A9rit%C3%A9
Record 35, Spanish
Record 35, Textual support, Spanish
Record 36 - internal organization data 1975-03-11
Record 36, English
Record 36, Subject field(s)
- Aerodynamics and Theory of Gases
- Flights (Air Transport)
Record 36, Main entry term, English
- surface of discontinuity 1, record 36, English, surface%20of%20discontinuity
Record 36, Abbreviations, English
Record 36, Synonyms, English
Record 36, Textual support, English
Record number: 36, Textual support number: 1 CONT
If at some point, the local velocity becomes equal to the speed of sound, the pressure disturbances cannot propagate forwards; they build up to form a surface of discontinuity of pressure and density known as a shock wave. 1, record 36, English, - surface%20of%20discontinuity
Record 36, French
Record 36, Domaine(s)
- Théorie des gaz et aérodynamique
- Vols (Transport aérien)
Record 36, Main entry term, French
- surface de discontinuité
1, record 36, French, surface%20de%20discontinuit%C3%A9
feminine noun
Record 36, Abbreviations, French
Record 36, Synonyms, French
Record 36, Textual support, French
Record number: 36, Textual support number: 1 CONT
Les ondes de choc constituent des surfaces de discontinuité de l'écoulement, à travers lesquelles la vitesse, la pression, la masse spécifique et la température de l'air subissent des variations brutales. 1, record 36, French, - surface%20de%20discontinuit%C3%A9
Record 36, Spanish
Record 36, Textual support, Spanish
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