Radio frequency admittance switches, also known as radio frequency admittance level switches, radio frequency admittance level switches, radio frequency admittance level meters, or radio frequency admittance level meters, have a wide range of applications in power plants, oil fields, chemicals, papermaking, pharmaceuticals, metallurgy, and other fields. And this is inseparable from its principles and characteristics. So what is the working principle of RF admittance level switches?

　　Radio frequency admittance is a new level control technology that has developed from capacitive, anti hanging, more reliable, more accurate, and more widely applicable. It 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.

　　The RF admittance level switch has the characteristics of easy installation, accurate measurement, prevention of material hanging, and strong practicality. Its working principle is to measure and control the material level by sensing the changes in reactance (capacitance and impedance) between it and the tank body through a probe.

　　In order to make the selected RF admittance level switch more compatible with the on-site working conditions and measure more accurately, the selection work should be done from several aspects such as insertion depth, process temperature, process connection, protective function, and protective pole length.

　　The radio frequency admittance level switch replaces capacitance measurement with new radio frequency admittance technology, solving the problem of material adhesion. Compared with other similar products, it has higher system stability and can work reliably even under extremely harsh on-site conditions. It is not affected by hanging materials, temperature, pressure, density, humidity, and even changes in material chemical properties, and its performance is reliable. It is widely used for level measurement of media such as ash powder, mortar, cement clinker, and coal powder.

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Common types of radio frequency admittance level meters