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Microwave radar sensing module radar level gauge application

2022-08-08 712

The principle and application of the microwave radar sensor module in the intelligent radar level gauge, the data shows that the radar level gauge was made by Sweden in 1975. SAAB, the company took the lead in the field of liquid level measurement. As a non-contact liquid level measurement technology that has not been developed for a long time, it was not applied abroad until the mid-1990s. After entering the 21st century, my country began to gradually apply radar liquid level measurement technology for liquid level measurement. So, what is the principle and application of radar level gauge?

Microwave radar sensing module radar level gauge application

First, the principle of radar level gauge

Radar level gauges, some are also called radar level gauges. As a non-contact sensor, its working principle is to detect the information after microwave reflection, and then convert the surface position.


Specifically, the microwave radar sensing module antenna of the radar level gauge emits electromagnetic waves, which are reflected by the liquid level and then received by the antenna. The time from emission to reception of electromagnetic waves is proportional to the distance to the liquid level. The microwave radar induction module records the time of the electromagnetic wave, and the transmission speed of the electromagnetic wave is constant, so as to calculate the distance from the liquid level to the antenna.


Second, the application of radar level gauge

Because the main advantage of the radar level gauge is the embedded microwave radar sensing module, its non-contact continuous measurement is fast, and it can be detected online in real time. Therefore, it is not affected by factors such as temperature and humidity, fog, muddy water, sludge, aquatic plants, etc., and has high measurement accuracy, simple installation, convenient maintenance, and broad application prospects.


At present, in addition to hydrological monitoring stations, reservoirs and other applications, microwave radar sensing module radar level gauges are relatively common in urban waterlogging monitoring and early warning systems in my country, and can monitor bridges, culverts, drainage pipes, channels, concave roads, underground parking lots, urban Rivers, lakes, water systems, etc., provide guarantees for decision-making, emergency early warning, and escort the life safety of urban buildings and citizens under heavy rain conditions.


The radar water level gauge can monitor the water level, flow rate, rainfall and temperature under the bridge in real time. At the same time, the real-time data of the monitoring station is transmitted back to the management background, which truly and dynamically reflects the changes of the river water level and the distance between the bridges across the river, and obtains accurate data in real time, accurately and scientifically.