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Working Principle of High Frequency Radar Level Meter
time：2023-09-08 16:51:49 source：Weather Station viewed：460 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
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