Radar level meter can be used for continuous measurement of different material levels, suitable for high temperature, steam, high dust and volatile gas and other harsh environment, widely used in energy, metallurgy, petrochemical, building materials and other industries. The main technical indicators of radar level meter meet or better than similar products at home and abroad, the installation and debugging is simple, can be used single, can also be used network.
In addition to the performance described above, the radar level meter also has signal processing advantages, which and related factors are described below. 1. After the installation and operation of the radar level meter, the space surface situation of the application is constantly changing. Taking the reaction tank as an example, the chemical process needs to measure a variety of media, the liquid level will change when feeding, such as material adhesion, the physical or chemical characteristics of the inner surface of the tank, etc., these changes will inevitably affect the strength of the reflected signal.
2. The liquid level measured by the radar level meter also has a variety of changes, and the multiple reflections of the signal will change under different circumstances. If at rest is a mirror; The surface will fluctuate when the liquid level changes; Sometimes there may be bubbles. 3, when the radar level meter measures the height of the liquid surface is different, its measurement space shape is constantly changing, and the reflection and oscillation of the signal are also different. Especially when the measured space has a curved surface, such as a spherical container, a vaulted tank or a horizontal elliptical tank, because the surface has a focusing effect on electromagnetic waves, the height change of the liquid level has a greater impact on the reflection.
4, the medium in some application sites will also directly affect the radar wave transmission and reception of the radar level meter, on the one hand, it is reflected in the effect on the antenna: such as steam condensation on the surface of the antenna, the material crystallization on the surface of the antenna. On the other hand, the volatilization or atomization of the medium in the tank will also affect the propagation of the radar wave, and then affect the measurement. 5, the application of radar level meter is often limited to a small space, rather than a huge open space. The signal emitted by the radar level meter is electromagnetic wave, which is divergent in space and has all the characteristics of electromagnetic wave, such as reflection, diffraction, refraction and so on. Any object in the propagating space will produce a reflection of the signal. A small space will produce many reflected signals, including the direct reflection of the surface of the object, and the back and forth reflection and oscillation of the signal (multiple reflections between surfaces).