FREQUENCY MODULATION CORROSION-PROOF CAPACITANCE FLUID LEVEL GAUGE

The utility model discloses an electric capacity type liquid level gauge being suitable for acid and alkali solution, which utilizes the principle of an electronic circuit and can measure the liquid level of the corrosive liquid, such as strong acid, strong alkali, etc., comprising a sensor, a transducer, and a remote transmitting indicating gauge, wherein, the sensor is a measuring electrode composed of a tank outer shell and a conducting wire, the measuring electrode, the transducer, and the remote transmitting indicating gauge 3 form a return circuit. The utility model has the advantages of simple circuit and high measuring accuracy, which can overcome the defects of complex circuit, unsteady working, and large baseline drift of the existing dispersive liquid level gauge and the electric capacity type liquid level gauge, and can be used for the liquid level measuring of the container tank of the departments of oilfield, chemical industry, etc.