Measurement Of Radar Level Gauge in Waveguide

In actual working conditions, the radar level gauge is non-contact measurement. Generally speaking, non-contact measurement still has many advantages, but in some special working conditions, non-contact measurement has brought Some problems, there are obstacles in the area of the transmitted microwave beam during the propagation process, such as ladders, heating equipment, brackets, limit switches, etc., these facilities will affect the propagation of microwaves, and then affect the measurement of radar level gauges.
The measurement of the radar level gauge is measured by microwaves. If the microwaves encounter obstacles during the propagation process, they will be reflected. Under normal circumstances, when the microwave measurement environment is relatively simple, the position of the material can be clearly measured through the oscilloscope. However, in some relatively complex measurement environments, the obstacles encountered by the microwave during propagation are not just materials. In this case, several echoes will be generated, which eventually leads to the inability to accurately determine the position of the material. .
In view of the above situation, at this time we need to solve this problem through some special ways. Using waveguide or bypass channel can solve this problem very well
Through the waveguide or bypass channel, we can effectively avoid the influence of some obstacles that interfere with the measurement. Of course, this is only applicable to some specific actual working conditions, because only the medium with relatively good fluidity can make the waveguide or bypass pipe at the same level as the main container under test, and viscous medium is not suitable. Applicable. At the same time, it is also worth noting that the inner wall of the waveguide or bypass channel is also required to be smooth, so as to ensure that the fluidity of the medium is not disturbed. so as not to affect the measurement. Finally, the height requirement of the takeover is that the antenna must be extended into the tank at least 10mm away.