What is the phenomenon of false signal reporting by radar level gauge?

From now on, the radar level gauge used by our company will occasionally have a momentary high material level, and then return to the normal display value. This phenomenon will be displayed normally without any treatment. The surface temperature on the level gauge is only -4 degrees. I don’t know if it will affect the measurement of the radar level gauge. What is the phenomenon of false signal reporting by radar level gauge? What are the reasons? Answer: Compared with other radar level gauges such as: infrared, laser, and ultrasonic level gauges, the environmental impact factors should be said to be very small, but it does not rule out the existence of a certain temperature drift, which may be one reason; another The reason may also be that most of the radar level gauges currently used in China use horn antennas. When the antennas are exposed to dust and volatile liquids, they are easy to solidify and form layers, which will cause interference. The third reason is that radar liquid level is mostly measured in the form of FMCW modulated continuous wave or pulse wave. When some interference signals suddenly appear in the environment, it is easy to have a large or small instantaneous value.

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