Features of Rod Type Guided Wave Radar Level Gauge

The guided wave radar level gauge is divided into rod type and cable type. So what are the characteristics of the rod radar level gauge? 1. Low energy consumption. The waveguide of the liquid level gauge provides a fast and efficient channel for the round-trip transmission of the signal to the liquid level, and the attenuation of the signal is kept to a small degree, so it can be used to measure the medium liquid level with a particularly low dielectric constant. In addition, due to the low energy consumption of the guided wave radar, a loop power supply is used instead of a separate AC power supply, so a lot of installation costs are greatly saved. 2. Since the transmission of the signal in the waveguide will not be affected by the fluctuation of the liquid level and the obstacles in the storage tank, the return signal energy received by the liquid level gauge is relatively strong, and there are interfering stray signals in the return signal. It is very small and basically has no effect on the measurement signal. 3. The change of the dielectric constant of the medium has no obvious influence on the measurement performance of the liquid level gauge. Rod-type guided wave radar, like conventional radar, uses transit time to measure medium level, the only difference is the difference in signal amplitude (strength). Ordinary radar needs to consider the influence of the medium, it is difficult to identify the various signals returned, and it is impossible to distinguish the real liquid level signal from the stray signal, while the rod-type guided wave radar only needs to measure the transmission time of the electromagnetic wave, and does not need to be processed. and discriminating signals. 4. The change of medium density has no effect on the measurement of the liquid level gauge. The change of medium density affects the buoyancy of objects submerged in the medium, but does not affect the transmission of electromagnetic waves in the waveguide. 5. Mist and foam have no effect on the measurement of the level gauge. Since electromagnetic waves do not travel through space, fog does not affect signal attenuation, and foam does not scatter the signal and lose energy. 6. The deposition and contamination of the medium on the waveguide have very little influence on the liquid level measurement. 7. The maximum range of the rod type radar level gauge can reach 6 meters.

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