Measuring the speed of sound of a gas

Details Measuring the speed of sound of a gas Measuring the speed of sound of a gas

G - Physics

01

H

G01H 5/00 (2006.01) G01N 29/18 (1995.01)

Patent

CA 2334974

A method and apparatus for determining the speed of sound in a gas. An acoustic transmitter is arranged to apply an acoustic signal to the interior of a resonator and an acoustic receiver is arranged to detect the amplitude of the acoustic signal in the interior of the resonator. A control means determines the speed of sound of gas within the resonator from the frequency of a detected non-radial resonant mode.

L'invention porte sur un procédé et un appareil de détermination de la vitesse du son d'un gaz. Un émetteur acoustique est conçu de façon à appliquer un signal acoustique à l'intérieur d'un résonateur, et un récepteur acoustique est conçu de façon à détecter l'amplitude du signal acoustique à l'intérieur du résonateur. Un dispositif de commande détermine la vitesse du son du gaz dans le résonateur à partir de la fréquence d'un mode résonant non radial détecté.

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