Radio frequency admittance level switch is a type of radio frequency admittance switch. The probe of the radio frequency admittance level switch can be applied to dust and solid particulate matter, and can provide high sensitivity, stability, and durability. It is equally effective for liquids and mud. RF admittance level switch, also known as RF admittance level meter, is commonly referred to as RF admittance switch.

　　Its measurement principle is that radio frequency admittance is a new level control technology developed from capacitive, anti hanging, more reliable, more accurate, and more applicable, which is an upgrade of capacitive level technology. The so-called radio frequency admittance refers to the reciprocal of impedance in electricity, which is composed of resistive, capacitive, and inductive components. Radio frequency refers to the high-frequency radio spectrum, so radio frequency admittance can be understood as measuring admittance using high-frequency radio waves. When the instrument is in operation, the sensor of the instrument forms an admittance value with the filling wall and the measured medium. When the level changes, the admittance value changes accordingly. The circuit unit converts the measured admittance value into a level signal output to achieve level measurement.

　　For continuous measurement, the difference between RF admittance technology and traditional capacitance technology is not only mentioned above, but also includes two important circuits, which are improved based on an important discovery in conductive hanging practice. The above technology also solves the problem of connecting cables and the problem of hanging materials at the root of vertically installed sensors at this time. The two circuits added to the lock are the oscillator buffer and the AC converter chopper driver.

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