Doppler Ultrasonic Flowmeter Basics

Doppler ultrasonic flowmeter is a device that utilizes the Doppler effect of sound waves propagating in a fluid. It measures flow by detecting the Doppler frequency shift of sound waves scattered by moving particles within the fluid. In recent years, with the rapid development of detection technology and signal processing technology, even the minute Doppler frequency shifts caused by tiny air vortices generated by the fluid itself during flow can be sensitively detected. Therefore, Doppler ultrasonic flowmeters can also be used for flow measurement of purely clean fluids.

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