The ultrasonic water meter is set to T1 and T2 are two ultrasonic sensors inserted into the pipeline respectively. The ultrasonic wave sent from T1 arrives at T2 at T1, and the ultrasonic wave sent from T2 arrives at T1 at T2 (as shown in the right figure). When the fluid is flowing, then the two transport times T1 and T2 are different, and there will be a very small difference
No, this difference is called jet lag. The flow rate of the pipeline fluid is a function of the time difference, so the flow rate of the pipeline fluid can be calculated and the flow rate can be obtained. (D is the inner diameter of the pipe, and θ is the Angle between the two probe lines and the pipe axis.)
Ultrasonic water meters are mainly used in the following fields:
1) Water companies replace mechanical water meters.
2) Industrial process measurement and control, plant measurement.
3) Fire water monitoring, etc.
4) HVAC cold water flow metering.
5) Water-based measurement of various liquid medium.
6) Fixed point flow metering without power supply.
Post time: Aug-05-2022