The difference between radar level gauge and other level gauges

The radar level gauge is based on the reflection principle. The electromagnetic pulse travels along the steel cable or probe at the speed of light. When it hits the measured medium, the local pulse of the radar level gauge is reflected to form an echo. Then return to the pulse emission installation along the same path, and the interval between the emission device and the surface of the measured medium is proportional to the duration of the pulse, so as to obtain the final measured liquid level height value. The radio frequency admittance level meter uses its high-frequency radio waves to act on the probe to judge the change of the level in the container. The probe and the container wall form a capacitor with a fixed distance between two stages, and the insulating material and the surrounding air provide the insulating medium. When the air is replaced by other media, the capacitance formed by the probe and the container wall will change, causing the transformation of the radio waves acting on the radio frequency admittance level gauge probe. At this time, it will be detected by the internal line of the RF admittance level gauge, and compared with the set value, the amount of change will be determined. And when it is at the same time as the set value, the radio frequency admittance level meter outputs a switch signal. The technical advantage of radar level gauge is to continuously measure the level of liquids, particles and slurries, and the measurement is not affected by medium change, temperature change, inert gas and steam, dust, foam, etc. The radio frequency admittance level meter can provide economical and reliable point control. It is widely used and suitable for various places, such as chemical plastic film, feed, grain rubber medicine, liquid waste water sand, food slurry cement, powder paint, etc. Usually the accuracy of the radar level gauge is 5MM, the range is 60 meters, the high temperature resistance of 250 degrees, the high pressure of 40 kg, can be used in the explosion area acid and alkali storage tanks, slurry storage tanks, solid particles, small oil storage tanks and other occasions, and It can be used in various conductive, non-conductive and corrosive media, such as coal bunker, ash bunker, oil tank, acid tank, etc. The RF admittance level meter can be used for dust and solid particulate materials, and can provide high sensitivity, stability, and durability. It can be used in liquids and mud, with high sensitivity and anti-hanging materials. Users should choose radar level gauge or radio frequency admittance level gauge according to their actual situation and needs. Each level gauge has its own characteristics and characteristics, and has its own advantages and disadvantages for different use environments.

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