Velocity-dependent characteristics of modulated ultrasonic signal in gas flow |
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| Authors: | Niernann M. Hans V. |
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| Affiliation: | Inst. of Meas. & Control, Essen Univ.; |
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| Abstract: | Natural variations of pressure, density, and velocity occur in streaming fluid modulated ultrasonic signals. The characteristics of modulated ultrasonic signals in gas flow are strongly dependent on velocity. This paper describes a way to find a velocity-dependent characteristic quality detected in the modulated signal and to determine the flow rate on the basis of signal analysis of only one ultrasonic barrier. |
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