Radar level sensor factory by Kaidi86? Measuring principle of radar water level meter: The radar level gauge adopts the working mode of transmitting-reflecting-receiving. The electromagnetic wave emitted by the antenna is reflected by the surface of the measured object and then received by the antenna. After measuring the distance from the water surface to the radar antenna, the elevation of the water surface can be calculated according to the elevation of the radar antenna. The radar water level meter adopts pulse wave technology with low power consumption. It can be powered by two-wire 24 VDC, 485 interface output, or can be directly powered by 12 VDC, SDI-12 interface output, with high accuracy and wider application range. Discover even more details at radar level transmitter.
Working principle: Working principle of radar level gauge: UHF electromagnetic waves are transmitted to the liquid level of the container under test through the cable or antenna. When the electromagnetic wave touches the liquid level and is reflected back, the instrument detects the time difference between the initial wave and the echo, thereby calculating the liquid level height. Select guided wave radar or airborne radar according to the dielectric constant and measurement length of the measured medium.
In addition, some silos in cement plants are very high, such as homogenizing silos of 50cm. It takes time and energy to board high silos to debug radar, so it is recommended to choose HART handheld operators that can be debugged remotely in the central control room. In the central control room, the range and other basic parameters can be set, and the radar echo waveform can be observed, and the waveform can be used for remote diagnosis and debugging, greatly reducing the on-site work intensity of the staff, to avoid the risk of climbing operation. The smart radar level gauge commonly used at present also has a function similar to “driving recorder”, that is, when the material surface mutation occurs on the scene, it can capture the radar echo waveform at that time, which is very useful for debugging the silo under complex conditions.
Measurement accuracy, the accuracy of ordinary radar is generally ±10mm, and the accuracy of precision radar is ±3mm. Selection according to the actual needs of production. Range, according to actual needs, choose the antenna size. Note that the actual range is reduced in complex environments. Antenna type and antenna size, the larger the antenna size, the larger the measured range and the stronger the anti-interference ability. The antenna types of radar level gauge are rod type, bell mouth type, paraboloid and so on.
For radar level gauges, there are many reasons for interference and many sources of interference. We analyze from four aspects: internal, external, AC and DC. Celestial and celestial interference, first of all, what is celestial interference? Celestial objects refer to the sun or other stars, therefore, celestial interference refers to the interference of their electromagnetic waves on the radar level gauge. We are very unfamiliar with Tiandian. The so-called Tiandian is usually understood as the interference of the signal of the magnetrol radar level gauge caused by the ionization of the atmosphere, lightning, or the electromagnetic waves generated by natural phenomena such as volcanoes and earthquakes.
KAIDI level transmitter manufacturer is dedicated in providing complete customized solutions for a wide range of industrial automation process applications – in material level, liquid flow, pressure and temperature. We are constantly developing and innovating, our core vision – “to provide solutions that exceed customers’ expectations. In 2012, the company successfully expanded its operations both locally and internationally, achieving global success and recognition for quality fork type level switch, magnetic level gauge products and services. Read more details at https://www.kaidi86.com/. Kaidi Energy is a level gauge manufacturer which more than 20 years of industrial automation experience.
The influence of dust accumulation on the transmitter head of the radar level meter, due to the large amount of dust in the working condition of the radar level meter, the dust is easy to adhere, and affected by the ambient temperature, the dust is wet and easy to agglomerate, and the dielectric constant will become larger and adhered The transmitter head and the wall of the bell mouth of the radar level meter affect the accuracy and stability of the radar measurement.