Magnetic level gauge

Abstract

A wall-mounted magnetic level gauge for material storage containers, the magnetic level gauge comprises: A magnetic displacement assembly, which is located on the sidewall of the material storage container and generates a mechanical displacement in response to the level of a material in the material storage container. It further includes a magnetic sensor assembly, comprising a protective housing, a magnetoresistive chip, and a processing module located within the protective housing. The protective housing is fixed on the side wall of the material storage container. The magnetoresistive chip is located at a side of the processing module facing a magnet displacement assembly. The magnetic sensor assembly is used to sense a magnetic field produced by the magnet displacement assembly to determine the level of the material in the material storage container. The magnet displacement assembly displaces the magnet according to the level of the material. The magnetoresistive chip senses a magnetic field change of the magnet displacement assembly to determine the level of the material accordingly. The magnetic level gauge has the advantages of simple structure, low power consumption, high sensitivity, and low cost. It is suitable for the solid and liquid material measurement.