Acoustic flow sensors

Measuring and testing – Volume or rate of flow – Using rotating member with particular electrical output or...

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G01F 100

Patent

active

043489060

ABSTRACT:
In the disclosed apparatus, flow of fluid in a pipe is sensed by directing acoustic signals at a fluid-metering rotor in the pipe. One or more transducers are used for emitting an acoustic signal and receiving acoustic reflections. A flow-representing signal is derived that varies with the attitude of the rotor in relation to the transducer(s).

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