Reduction of temperature influence caused by pressure of sound velocity in gas
A technology of gas and gas molecules, applied in the use of sound waves/ultrasonic waves/infrasonic waves for material analysis, measuring devices, instruments, etc.
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[0073] Measuring chamber
[0074] In a preferred embodiment, the invention is realized by means of a measuring chamber for temporarily containing the gas to be measured. Preferably, the chamber is mounted such that a gas flow passes through the chamber and measurement sampling is intermittently performed on the flowing gas. A functional requirement for the measuring chamber is that the chamber-defining substance should act as a thermal buffer and have an efficient heat exchange with the gas molecules. The higher the achieved heat exchange efficiency, the more the speed of the temperature equilibration process increases and the better the effect of the invention.
[0075] figure 1 A measuring device 1 according to the invention is shown schematically. The measuring chamber 2 defined by the chamber-defining structure 5 has a cavity 4 with a space of gas in which ultrasonic waves propagate from the ultrasonic transmitter to the ultrasonic receiver. exist figure 1 In the ...
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