Influence Range Of Propagation Medium Of High-frequency Pulse Radar Level Gauge

When the dielectric constant is stable, the radar type level transmitter shows more excellent performance. The high frequency pulse radar level meter uses electromagnetic waves as the propagation medium. It is not affected by the stability of the medium during the propagation process, but is closely related to the dielectric constant of the medium. This characteristic distinguishes radar technology from ultrasonic technology, allowing it to play a unique role in their respective fields of application.

1. When a radar type level transmitter measures a medium, the flatness of the surface of the measured medium directly affects the dielectric constant. A flat surface is conducive to the reflection of echoes, thus improving the accuracy of measurement.

2. The air dielectric constant distribution between the antenna and the measured medium also affects the measurement results. The state of the surface of the measured medium and its dielectric constant are also one of the important factors.

3. In actual measurement, the high frequency pulse radar level meter calculates the measurement range from the point where the beam touches the tank bottom. However, in some special cases, such as when the tank bottom is concave or conical, when the level is lower than Accurate measurements are not possible at this point.

4. The dielectric constant of the medium is also one of the important factors affecting the measurement. When the medium has a low dielectric constant and the liquid level is low, the tank will be visible. In order to ensure the accuracy of the measurement, it is recommended to set the zero point at a low height.

5. Theoretically, the measurement range of the radar type level transmitter can reach the tip of the antenna. However, due to factors such as corrosion and adhesion, the final value of the measurement range should be at least 100mm from the tip of the antenna.

6. In order to increase overflow protection, a safety distance can be defined in the blind zone.

7. The minimum measurement range of high frequency pulse radar level meter is related to the design of the antenna.

8. The concentration of the medium also affects the measurement results. The foam can absorb or reflect microwaves, but under certain conditions, the radar type level transmitter can still perform accurate measurements.