According to radar theory, range resolution is determined by the bandwidth of the radar signal,  and FMCW radar has a large bandwidth, so it has a high range resolution. 

Because the delay time of the echo signal of the FMCW radar is much less than the time width of  the transmitted signal, the radar transmitter and the receiver can work at the same time, and there is no  distance blind area. 

Under a certain noise power condition, the detection capability of the radar is determined by the  energy of the radar signal. FMCW radar has a large time-band product, much larger than the pulse radar  with the same signal bandwidth and level, so under the same detection capability, FMCW radar has low  transmitting power and is not easy to be intercepted. 

Because the FMCW radar has a large time broadband width product, it does not need a high  peak power, so its operating voltage is relatively low, and it does not need to use high power and high  voltage devices, so that the whole system has a simple structure, small size, light weight and low cost.

The measuring equipment described in this document is used for continuous non-contact level  measurement of liquids, slurries and slurries.