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location:Home>News>Technical Articles>Working Principle of High Frequency Radar Level Meter

Working Principle of High Frequency Radar Level Meter

time:2023-09-08 16:51:49  source:Weather Station viewed:325 time

The working principle of high frequency radar level meter:


FM continuous wave radar level meter general principle is the radar to the top of the tank radiation electromagnetic waves, electromagnetic waves encountered in the medium when the reflection by the radar to receive, send and receive signals between the frequency difference δ f and the media surface distance R is a certain proportion: R = c (speed) × δ f (frequency difference) × 2 (FM slope) × K. As the speed of light C and the FM slope K are known, so the estimated frequency difference δ f can be found radar The distance R from the material surface of the installation place, then the total height of the tank is known and the space distance between the radar and the material surface is deducted, i.e., the height of the material level can be obtained.


Technical parameters


Application: temperature resistant, pressure resistant, slightly corrosive liquids


Measuring range: 30 meters


Process connection: thread, flange


Medium temperature: -40 ~ 250 ℃


Process pressure: -0.1~4.0MPa


Accuracy: ±3mm


Protection grade: IP67


Frequency range: 26GHz


Explosion-proof grade: ExiaⅡC T6 Ga/Exd ia IIC T6 Gb


Signal output: 4.... .20mA/HART (two-wire/four-wire) RS485/Mod bus

Working Principle of High Frequency Radar Level Meter


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