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location:Home>News>Technical Articles>FM Radar Level Gauge

FM Radar Level Gauge

time:2023-05-26 17:23:24  source:Weather Station viewed:353 time

As a new type of radar level meter, frequency modulation radar level meter has increased the frequency modulation function compared with general radar level meter, and is currently more used in the market. Suitable for environments in pools, tanks and other occasions.

Principle of frequency modulation radar level meter

The FM radar level gauge radar level antenna emits narrow microwave pulses and descends through the antenna. The microwave is reflected back after contact with the surface of the measured medium, and then received by the antenna system and transmitted to a part of the electronic circuit, which is automatically converted into a level signal (because the microwave propagates extremely rapidly, the electromagnetic wave is transmitted to the target and then reflected back to the receiver, which takes almost an instant).

Characteristics of FM radar level gauge:

1。 The antenna of the frequency modulation radar level meter is small in size and easy to install; Wear-free, contamination-free, non-contact radar.

2。 rarely subject to corrosion, foam hazards; It is basically not affected by gas vapor, temperature and pressure changes.

3. The heavy dust environment has almost no effect on the work of the high-frequency level meter.

4。 When the wavelength is short, the reflection effect is better for the inclined solid surface.

5。 When the beam angle is small, the energy is more concentrated, which improves the echo ability and helps to avoid interference.

6。 The measurement dead zone is small, and better results can be obtained for small tank measurements.

7。 Anti-interference, even in the ups and downs can get a good performance.

8。 High frequencies are preferred for the measurement of solids and media with low dielectric constants.

FM Radar Level Gauge


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