Principle of the material level switch

The principle of the level switch
       The material level switch level meter is a material level control technology developed from the capacitive level control technology, which is anti-hanging material, more reliable, more correct and more applicable. The meaning of the material level in the material level switch is The reciprocal of impedance in electricity, which is composed of resistive components, capacitive components, and inductive components. The "radio frequency" is high frequency, so the level switch technology can be understood as measuring the admittance with high frequency. The high-frequency sinusoidal oscillator outputs a stable measuring signal source, using the bridge principle to measure the admittance of the sensor mounted on the sensor in the container to be tested, in the direct acting mode, the output of the meter.
The difference between level switch technology and traditional capacitor technology lies in the diversity of measurement parameters, the drive of three-terminal shielding technology and the addition of two important circuits, which are based on valuable experience in practice. The above technology not only solves the problem of connecting cable shielding and temperature drift, but also solves the problem of vertical mounting of the sensor root hanging material. The two circuits added are a high precision oscillator driver and an AC phase detector.