Measuring the speed of sound of a gas
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United States of America Patent
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Nov 19, 2002
Grant Date -
N/A
app pub date -
Feb 15, 2001
filing date -
Jun 24, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
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