Pulse radar level gauges are widely used in industrial measurement, but in practical use, false echoes may sometimes occur, leading to inaccurate measurement results. Below are several methods for handling false echoes:

Choose a suitable installation location

The installation position has a significant impact on the measurement results of the pulse radar level gauge. During installation, it is advisable to choose a location far away from objects such as pipes, brackets, and flanges to reduce the generation of false echoes. At the same time, the propagation path of radar waves should be considered to avoid the impact of liquid level fluctuations on the measurement.

Adjusting the parameters of the radar level gauge

By adjusting the parameters of the radar level gauge, the problem of false echoes can be improved. For example, adjusting the transmission frequency, gain and other parameters of radar waves can better adapt to the actual measurement environment and improve measurement accuracy.

Adopting digital signal processing technology

Digital signal processing technology can effectively remove the influence of false echoes by filtering and denoising the echo signal. Common digital signal processing techniques include Fourier transform, wavelet transform, etc.

Compared to other measurement methods

In some cases, other measurement methods can be used for comparison, such as ultrasonic level gauges, magnetic float level gauges, etc. By comparing the results of different measurement methods, the problem of false echoes can be identified and corresponding measures can be taken.

Regular maintenance and calibration

Regular maintenance and calibration of pulse radar level gauges can promptly detect and solve the problem of false echoes. At the same time, the radar level gauge should be kept clean to avoid the influence of dust, dirt, and other factors on the measurement results.

In summary, dealing with false echoes in pulse radar level gauges requires comprehensive consideration of multiple factors, including selecting appropriate installation positions and parameter adjustments, using digital signal processing technology, comparing with other measurement methods, and regular maintenance and calibration, all of which are effective solutions. In practical applications, appropriate methods should be selected according to the specific situation for processing.