AO-100 ultrasonic flowmeter
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- AO-100 ultrasonic flowmeter
Working principle
The AO-100 series ultrasonic flowmeter/ultrasonic calorimeter utilizes the principle of low voltage and multi pulse time difference, and adopts digital detection technology of dual balanced signal differential transmission and differential reception to measure the sound wave transmission time in the forward and reverse directions, and calculate the flow velocity based on the time difference. It has the characteristics of good stability, small zero drift, high measurement accuracy, wide range ratio, and strong anti-interference ability.
When the ultrasonic beam propagates in a liquid, the flow of the liquid will cause a slight change in propagation time, which is proportional to the flow velocity of the liquid. At zero flow rate, the time required for the two sensors to emit and receive sound waves is exactly the same (a technology that can actually measure zero flow rate); When the medium flows, the transmission time of sound waves in the upstream direction is greater than that in the downstream direction. The relationship conforms to the following expression:
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autec@163.com
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