Key Considerations For Radar Level Meter in Sewage Pool Measurement

Aug 21, 2024|

Many people believe that the work of radar level meter in sewage pool level measurement is relatively simple and there is no essential difference from water measurement. But this is not the case, and the answer is obviously no.

The medium in the sewage pool is very complex. In addition to sewage, it may also contain dirty oil and other waste. Therefore, the working conditions of the measurement are not just a simple description, but are actually quite complicated.

 

FMCW radar for measuring sewage pools

 

In such an environment, what are the key considerations when using sewage pool radar level meter for measurement? Let's explore it together.

First, timely treatment of sewage pools is crucial. Regardless of the medium being measured, the premise for accurate sewage pool level measurement is to obtain sufficient echo signals. In the sewage pool, dirty oil and debris may form a hard shell on the water surface. When the radar wave emitted by the sewage pool radar level meter encounters this liquid surface, scattering occurs, resulting in a weakening of the echo signal. If the scattering phenomenon is too severe, it will lead to the inability to make effective measurements. Therefore, in order to ensure that the radar wave can be fully reflected back to the liquid surface, it is necessary to clean the sewage pool regularly.

Second, power supply and electromagnetic interference also have an important impact on the measurement accuracy of Frequency modulated continuous wave radar level gauges. In order to improve the accuracy of measurement, the power supply system should be equipped with a voltage stabilizer. If there is an interference source near the power supply, you can consider installing an isolation transformer or a high-frequency filter to reduce the impact. For electromagnetic interference, the sewage pool radar level meter can be dealt with by installing anti-interference equipment and doing a good job of grounding protection. If the interference source comes from the transmission cable, using a shielded cable will be an effective solution.

Third, the length of the pipe also needs to be taken seriously. If the length of the pipe exceeds the length of the shielded pipe, the echo signal may be weakened, resulting in irregular fluctuations in the data. Therefore, when connecting the pipeline, be sure to ensure that the length of the pipe is less than the length of the shielded pipe.

Although the technical level of the sewage pool radar level meter is quite advanced, complex and changeable working conditions will still bring new challenges to the level gauge. Therefore, whether in the measurement of sewage pools, sulfuric acid tanks, or other unknown working conditions, specific problems should be analyzed specifically, and the appropriate Frequency modulated continuous wave radar model and installation method should be selected according to the actual situation.

 

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