We say high-frequency radar level meter, how does he work? The high-frequency radar level meter body takes an integrated design to reduce mechanical wear and tear in the process of use to reduce and extend the service life. Its main working principle is divided into two types, respectively, FM type and pulse type.
The power consumption of the FM type is large and must be used four-wire system, and the electronic circuit is more complex, compared to the pulse type, the power consumption is low, and the accuracy is higher, the use of a two-wire power supply can be, more secure, and a wider range of applications.
The working process of the high-frequency radar level meter is the “transmit-reflect-receive” mode, the electromagnetic wave from the transmission to the reception of the time proportional to the distance to the liquid surface.
It does not require a medium for propagation and can also be measured in a vacuum environment and is unaffected by atmospheric, vapor, and volatile fog measurement media.
In addition, the measurement method uses non-contact measurement, and can not be affected by the physical and chemical characteristics of the measurement medium; the measurement range is large, in high temperature, high-pressure liquid levels can also be measured, for the generation of false sound waves can be debugged to eliminate.
In the production of the antenna, the use of high-quality materials ensures that the key components of the instrument are corrosion-resistant. High-frequency radar level meter for the measurement of the dielectric constant requirements and low, in general, the greater the dielectric constant, the stronger the reflected signal.