Horn shaped radar water level gauge, radar liquid level gauge. Welcome to call for negotiation

Description :

　　The radar level gauge emits extremely short microwave pulses with low energy, which are transmitted and received through an antenna system. Radar waves travel at the speed of light. The running time can be converted into level signals through electronic components. A special time extension method can ensure stable and accurate measurements in a very short period of time.

　　Even in complex working conditions where false echoes exist, new microprocessing techniques and debugging software can accurately analyze the echoes of the material level.

　　Radar level gauge belongs to the general radar level gauge, which is a measuring instrument based on the time travel principle. The radar wave runs at the speed of light, and the running time can be converted into a level signal through electronic components. The probe emits high-frequency pulses that propagate at the speed of light in space. When the pulses encounter the surface of the material, they are reflected back and received by the receiver inside the instrument, which converts the distance signal into a level signal.

　　Maintenance of radar level gauge

　　Radar level gauges are mainly composed of electronic components and antennas, with no movable parts. They rarely encounter malfunctions during use. Occasionally, some volatile organic compounds in the storage tank may crystallize on the horn mouth or antenna of the radar level gauge. Regular inspection and cleaning are sufficient, and maintenance is minimal.

　　Distance measurement principle of radar level gauge

　　The radar level gauge emits modulated electromagnetic waves to the liquid surface, and the reflected echo signal from the liquid surface is received by the radar and mixed with the transmitted signal. The frequency of the resulting difference frequency signal is proportional to the distance from the liquid surface. A high-precision signal processing algorithm combining Zoom FFT and energy center of gravity correction algorithm is proposed for the application of millimeter wave radar level gauges. Zoom FFT is used for spectral refinement with a small refinement factor, and the energy center of gravity correction algorithm is used to accurately estimate the frequency of the difference frequency signal. This algorithm eliminates the influence of FFT fence effect on ranging accuracy, and the computational complexity and storage space are relatively reasonable The simulation results show that when the signal-to-noise ratio of the difference frequency signal is 12dB, the algorithm controls the root mean square error of the distance measurement to the millimeter level.

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• Horn shaped radar water level gauge