Principle：
The general principle of the FM continuous-wave radar level gauge is that the radar emits
electromagnetic waves on the top of the tank and the electromagnetic waves are received
by the radar after being reflected by the medium.
The frequency difference δf between the
received signal and the transmitted signal is proportional to the distance R from the surface
of the medium: R=C (speed)*δf (frequency difference)/2/K (frequency modulation slope).
Because the speed of light C and the frequency modulation slope K are known, the
frequency difference δf can be estimated to obtain the distance R from the radar installation
position to the material surface, and then through the known total height of the tank,
subtract the spatial distance from the radar to the material surface (referred to as Empty height) to get the height of the material level.
Characteristic：
1. Millimeter-wave radar, with a measurement accuracy of up to ±1mm, and a minimum
blind area of 0.1m.
2. The smaller antenna size satisfies the measurement of more working conditions.
3. A variety of lens antennas, smaller launch angle, more concentrated energy, stronger
echo signal, under the same industrial and mining conditions, compared to
Other radar products have higher reliability.
4. With stronger penetrability, it can be used normally even if there is adhesion and
condensation.
5. The dynamic signal range is larger, and the measurement of the low dielectric constant
medium is more stable.
6. In a variety of measurement modes, the radar reaction time in the fast measurement mode is less than 1S.