Magnetic-induction level gauge

Abstract

The embodiment of the invention discloses a magnetic-induction level gauge. The magnetic-induction level gauge is arranged on a side wall of a material bin and comprises a magnetic displacement assembly, a magnetic sensing assembly, wherein the magnetic displacement assembly is used for generating mechanical displacement towards a side wall of the material bin according to a height of a material in the material bin, the magnetic sensing assembly comprises a protection shell, a reluctance chip and a processing module, the reluctance chip and the processing module are arranged in the protectionshell, the protection shell is fixedly arranged on the side wall of the material bin, the reluctance chip is arranged on one side, facing the magnetic displacement assembly, of the processing module,and the magnetic sensing assembly is used for sensing a magnetic field signal of the magnetic displacement assembly and determining the height of the material in the material bin according to the magnetic field signal. In the magnetic-induction level gauge disclosed by the embodiment of the invention, the magnetic displacement assembly generates mechanical displacement according to the height of the material, and the reluctance structure is used for sensing the change of the magnetic field of the magnetic displacement assembly so as to determine the height of the material. Compared with the prior art, the magnetic-induction level gauge has the advantages of low power consumption, high sensitivity, simple structure and low cost and is suitable for solid-liquid material detection.

Description

technical field [0001] The embodiment of the present invention relates to storage detection technology, in particular to a magnetic induction level gauge for detecting the height of materials in a material bin. Background technique [0002] The level gauge is used to detect the material level. Existing material level gauges include rotary resistance type, diaphragm type, tuning fork type, vibrating rod type and radio frequency admittance type. The anti-rotation level gauge uses the motor to drive the blade. When the blade touches the material, the motor stops rotating and outputs the signal; the diaphragm type level gauge transmits its own deformation signal to the micro switch through the lever mechanism to trigger the action; the tuning fork type level gauge Based on the change of the vibration frequency when the tuning fork is immersed, and then output the signal; the vibrating rod level gauge uses the material coverage to increase the vibration damping to trigger the si...

AI Technical Summary

Problems solved by technology

[0003] However, the resistance-rotary level gauge has low cost, the diaphragm type level gauge has low sensitivity, the tuning fork type level gauge has high power consumption, the vibrating rod type level gauge has high power consumption, low sensitivity and high cost, and the radio frequency admittance type level gauge has high power consumption. Bit meter power consumption is high

Images