TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

acoustic method [3 records]

Record 1 2022-01-11

English

Subject field(s)
  • Collaboration with the FAO
  • Sonar and Underwater Detection (Military)
  • Commercial Fishing
CONT

Acoustic methods have been widely used in fisheries research for pelagic fish biomass estimation, lately including very sophisticated techniques, such [as] multi-frequency, wide band, multibeam, vertical and horizontal echosounding. ... acoustics are superior to other methods for pelagic fish assessment ... The main advantage of fisheries acoustics is its ability to ... provide a level of the total accuracy of the abundance ...

French

Domaine(s)
  • Collaboration avec la FAO
  • Sonar et détection sous-marine (Militaire)
  • Pêche commerciale
CONT

Les campagnes à la mer sont réalisées pour effectuer des évaluations directes des stocks de [poissons] pélagiques par la méthode de prospection acoustique […] pour estimer des indices d'abondance de stocks démersaux […]

Spanish

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Record 2 2016-02-25

English

Subject field(s)
  • Special Education

French

Domaine(s)
  • Éducation spéciale
DEF

Méthode permettant aux sourds de comprendre et utiliser le langage parlé, moyennant un entraînement des organes sensoriels - ouïe et toucher - faisant appel à des sources de vibrations sonores et à des aides auditifs électroniques.

Spanish

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Record 3 1999-08-18

English

Subject field(s)
  • Geological Research and Exploration
  • Seismic Prospecting
DEF

An exploration technique utilizing the variation in the rate of propagation of shock waves in layered media. It is used primarily to delineate subsurface structures of possible economic importance. It is employed most frequently by the petroleum industry.

CONT

Related to seismic method are the acoustic methods that use sound-wave echoes for mapping the bottom contours of bodies of water.

CONT

Other methods are also used in geophysical exploration. Acoustics methods are applied to determining ocean depths by echo sounding.

French

Domaine(s)
  • Recherches et prospections géologiques
  • Prospection sismique
DEF

Méthode de prospection qui mesure, à l'aide de sismographes très sensibles, les vibrations élastiques transmises à un sol que l'on ébranle.

CONT

La prospection acoustique n'est qu'un perfectionnement récent de la méthode séismique. Elle permet, selon la forme, la période, l'intensité des rayons échos, la détermination de l'emplacement des couches sédimentaires sous le chapeau imperméable des argiles ou des marnes.

Spanish

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