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Structure and Working Principle of Non-contact Radar Level Sensor

Aug 11 , 2023

The measurement techniques and methods for liquid level are various, and the corresponding measuring tools include non-contact radar level sensor, magnetostrictive liquid level measurement, submersible water level transducer, capacitive liquid level probe, ultrasonic level transmitter etc. And according to the different medium and measurement conditions, as well as the advantages of various liquid level measurement, formed a diversified situation. However, in the current situation, the use rate of non-contact radar level sensor is the highest.

The working principle of non-contact radar level sensor

Non-contact radar level sensor uses a transmit-reflection-receive mode of operation. The antenna of the radar liquid level sensor emits electromagnetic waves, which are reflected by the surface of the object to be measured, and then received by the antenna, thereby measuring the distance from the time of transmitting and receiving the electromagnetic wave to the liquid surface. At the same time, it can not only measure the liquid level in the pressure vessel, but also neglect the advantages of high temperature, high pressure, fouling and condensate. Secondly, it also has high precision, no direct contact with the medium, strong corrosion resistance, and It is widely used in vacuum environment and equipment, and it plays an increasingly important role in liquid level measurement.

Structure and composition of long-range radar level sensor

The long range radar level sensor is mainly composed of a transmitter head and an antenna. The transmitter head is interchangeable with the series of radar level gauges. The transmitter head consists of a body and an electronic unit (THE). The electronic unit is composed of a microwave unit, signal processing, data communication, power supply, and transient protection circuit board. And its antennas come in many types, such as parabolic, conical, rod, and process closed.

By understanding non-contact radar level sensor and the difference between long range radar level sensor, we can according to the measuring environment to choose different types of sensors, industrial sensors if the above are not what you want, you can click here to get more sensor information.




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