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ANEMOMETRE SONIQUE [1 record]

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Record 1 2010-03-12

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
DEF

An anemometer which measures wind speed by means of the properties of wind-borne sound waves.

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.

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.

CONT

The acoustic anemometer uses the fact that wind affects the speed of a sound signal.

PHR

3-axis, 3-D, 3-dimensional, Gill, omnidirectional, solent, three-axis, three-dimensional sonic anemometer.

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
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.

PHR

Anémomètre sonique mono-dimensionnel, Solent, tridimensionnel

Spanish

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