Working Principle of Radar Water Level Sensor
The radar water level meter uses the radar principle for non-contact water level measurement. Its working principle can be divided into the following steps:
Sending signal: The radar water level meter sends microwave signals through the antenna. The signal is sent in the form of pulses. It has a higher frequency and a short pulse width.
Receiving reflected signals: When the microwave signal encounters the water surface, a part of the signal is reflected back to the radar water level meter. The receiving antenna of the radar water level meter receives these reflected signals and converts them into electrical signals.
Signal processing: The received reflected signal is processed by amplification and filtering to remove stray signals and interference.
Distance calculation: According to the time delay and propagation speed of the reflected signal, the distance between the target object and the radar, that is, the height of the water level, is calculated.
