Cloud Chuan IoT Radar Doppler Velocity Flow Meter Flow Monitoring

This product is a sensor that measures the flow rate and flow rate of water in natural waters. The working frequency of the ranging radar unit is 60GHz and adopts the FMCW frequency modulated continuous wave system. The working frequency of the speed measuring radar unit is 24GHz. The measuring point is in front of the body,which does not destroy the flow field; the measurement accuracy is high and the flow measurement is linear; there are no rotating parts and no fear Sediment clogging and aquatic weeds,the probe is sturdy and durable,there is no problem of sediment clogging or aquatic weeds,debris entanglement,etc. It is suitable for measurement in rivers with high sediment suspended matter content,a lot of aquatic plants and other floating objects,and in harsh ice age situations.

This type of radar level meter can be widely used in flow monitoring at water level measuring stations,irrigation branch canals,sewage and rainwater pipe networks,etc.

Features

1. High measurement accuracy and wide measuring range;

2. Sensitive sensing,high resolution,not limited by starting flow rate;

3. Fast response;

4. Measurement linearity,there is no K and C values of the calibration curve.

working principle

radarDoppler flowmeterThe measurement principle is based on the Doppler effect in physics. According to the Doppler effect of electromagnetic waves,when there is relative motion between the wave source and the observer,the wave frequency felt by the observer will be different from the frequency emitted by the wave source. This frequency caused by relative motion is proportional to the relative speed of the two objects. In the radar Doppler flow measurement method,the radar sensor emits electromagnetic waves. After contacting the fluid surface,a frequency shift occurs and is reflected back to the sensor. on the receiver. The frequency difference between the transmitted wave and the received wave is the Doppler frequency shift of the wave caused by the movement of the fluid. Since this frequency difference is proportional to the fluid flow rate,the flow rate can be obtained by measuring the frequency difference. Then the flow rate of the fluid can be obtained Therefore,a necessary condition for radar Doppler flow measurement is that the measured fluid medium and the measuring equipment need to have a certain This working condition is actually one of its major advantages,that is,this flow measurement method is suitable for The measurement of two-phase flow is a problem that is difficult to solve with other flow meters. Therefore,as a promising two-phase flow measurement method and flow meter,the radar Doppler flow measurement method is increasingly being used.