The radar level gauge is a measuring instrument based on the time-travel principle. This measuring instrument emits electromagnetic waves to the surface of the measured medium through an antenna system. The surface of the medium reflects the electromagnetic wave signals, which are then received by the antenna system. The measuring instrument uses the operation required by the radar pulse. 

The level of the material can be calculated based on the time and the height of the input container. 

The radar beam of the level gauge has low energy. It can be installed in various metal or non-metal containers or pipelines to conduct non-contact continuous measurement of the level of liquids, slurries and granular materials. It is suitable for applications where there are significant changes in dust, temperature and pressure, as well as the presence of inert gases and steam. 

The radar level gauge poses no harm to the human body or the environment. It also has the advantages of being unaffected by the density of the medium, being independent of changes in dielectric constant, and not requiring on-site calibration.

雷达物位计是基于时间行程原理的测量仪表，该测量仪表通过天线系统向被测介质表面发射电磁波，介质表面反射电磁波信号 , 随后被天线系统接受，测量仪表利用雷达脉冲所需要的运行

时间和输入的容器高度可以计算出料位。

物位计雷达波束能量低，可安装于各种金属、非金属容器或管道内，对液体、浆料及颗粒料的物位进行非接触式的连续测量。适用于粉尘、温度、压力变化大，有惰性气体及蒸汽存在的场合。

雷达物位计对人体及环境均无伤害，还具有不受介质比重的影响，不受介电常数变化的影响，不需要现场校调等优点。