SRL630 76-81GHz Universal FMCW Radar Level Transmitter frequency modulated continuous wave (FMCW) radar level meter antenna emits a frequency modulated continuous wave signal (76~81GHz), which propagates in space at the speed of light, and encounters the measured medium.
Part of the energy of the surface is reflected back and received by the same antenna. The echo signal received by the antenna is mixed with the transmitted signal, and the output is output after mixing.
The frequency of the frequency signal is proportional to the distance, so as to calculate the distance from the antenna to the surface of the measured medium.