4-20mA Output Portable Ultrasonic Flow Meter With RS485
Ultrasonic flowmeter is an indispensable measuring instrument for measuring the flow of liquid, acid, and alkali. The accuracy of the set point-to-point related flowmeter is currently generally used in two ultrasonic flowmeters, Doppler ultrasonic flowmeter and time difference ultrasonic flowmeter. The Doppler type uses the phase difference method to measure the flow velocity. That is to say, because a sound wave of a known frequency moves in the fluid, the liquid itself has a moving speed, so the frequency or phase of the ultrasonic wave between the two receivers (or transmitters) will change relatively. The velocity of the liquid can be obtained by measuring this relative change. The time difference type uses the time difference method to measure the flow rate. That is to say, the propagation time of a sound wave of a certain speed between two receivers (or transmitters) due to the flow of the fluid changes, and the flow velocity of the fluid can be obtained by measuring this relative change. The correct installation method is very important to the flowmeter. Rui Lingyi shares installation tips and suggestions for ultrasonic flowmeters.
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1. 23 years of instrumentation equipment production experience
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3. The company area 20,000 square meters, and 150+ orders per month
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