Ultrasonic flow meters utilize low voltage and multi-pulse time difference principles, employing high-precision and ultra-stable dual-balance signal differential transmission and differential reception.
Utilizing digital detection technology to measure the sound wave transmission time in both downstream and upstream directions, the velocity is calculated based on the time difference. It boasts good stability, minimal zero-point drift, and high measurement accuracy.
Wide range, strong anti-interference characteristics. When the ultrasonic beam propagates in a liquid, the liquid flow will cause the propagation time to undergo minute changes.
The change is directly proportional to the flow rate of the liquid; at zero flow, the time required for both sensors to emit and receive sound waves is identical. When the medium flows, the sound wave transmission is in the opposite direction.
Time exceeds the acoustic transmission time in the downstream direction.