【Identification】Explain in one sentence the measurement principle of these level gauges

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On site, we often see a device specifically used for measuring liquid levels – a level gauge. Users who have used level gauges have noticed one thing: there are various types of level gauges available on the market, so many of them struggle to distinguish between these different types. Today, the technical editor from Shaanxi HuiBo Electromechanical will explain the measurement principle of these level gauges in just one sentence. 　　1. Radar level gauge A radar level gauge is a measuring instrument based on the time-of-travel principle and the frequency difference principle; radar waves travel at the speed of light, and the travel time can be converted into a level signal using electronic components. 　　2. Fork-type level gauge The working principle of a fork-type level controller is to cause the fork to vibrate at a specific resonance frequency through a pair of piezoelectric crystals mounted on the fork’s base. 　　3. Float level gauge The float-type level gauge operates on the principle of changing buoyancy, while the intelligent electric float level gauge is a level measurement instrument designed based on Archimedes’ principle and magnetic coupling. 　　4. Ultrasonic level gauge An ultrasonic level gauge detects the level of a substance by utilizing the principle that the time interval between the emission of sound waves and the reception of the reflected echoes is proportional to the height of the liquid level. 　　5. Servo level gauge The measurement of a servo level gauge is based on the Archimedes principle. 6. Float level gauge A float level gauge operates on the principle of constant buoyancy; its structure is designed and manufactured based on the principles of buoyancy and static magnetic fields. 　　7. Capacitive level gauge: A capacitive level gauge measures the liquid level by detecting changes in the capacitance between two electrodes.
8. Magnetic flap level gauge: This type of level gauge is developed based on the principles of buoyancy and magnetic coupling.
9. Radioactive level gauge: It operates on the principle of radioactive absorption.
10. Steel belt level gauge: This level gauge is designed and manufactured using mechanical principles. The above are the types of level gauges that we encounter frequently; I hope they can provide some assistance to everyone in making choices and using them.