雷达料位计采用非接触式测量方法，是一种理想的经济型产品，适用于储料罐、静井或外接腔体等.
The radar level gauge adopts non-contact measurement method, which is an ideal economical product, which is suitable for storage tank, static well or external cavity
雷达料位计是利用回波测距原理。发射天线向被测目标发射微波（即发射波），被测目标的微波被接收天线接收（即回波），信号处理器将发射信号与接收信号比较，计算出被测距离，并可算出相应的料位值
Radar level meter is based on echo ranging principle. The transmitting antenna transmits microwave (i.e. transmitting wave) to the measured target, and the microwave of the measured target is received by the receiving antenna (i.e. echo). The signal processor compares the transmitted signal with the received signal, calculates the measured distance and calculates the corresponding material level value