Energy-saving alternating-current demagnetization device and method for ferromagnetic pipe and rod electromagnetic detection

Energy-saving alternating-current demagnetization device and method for ferromagnetic pipe and rod electromagnetic detection

  • CN 107,240,477 B
  • Filed: 06/02/2017
  • Issued: 08/24/2021
  • Est. Priority Date: 06/02/2017
  • Status: Active Grant
First Claim
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1. The utility model provides an energy-saving AC demagnetizer for ferromagnetic pipe stick electromagnetic detection, includes demagnetizer, current controller, photoelectric sensor, surveys magnetic sensor, its characterized in that:

  • the demagnetizer is electrically connected with the current controller;

    the photoelectric sensor is electrically connected with the current controller and is fixed at the inlet end of the demagnetizer;

    the magnetism measuring sensor is electrically connected with the current source, is fixed at the outlet end of the demagnetizer and is used for measuring the surface magnetic field intensity of the workpiece;

    wherein the current controller 2 automatically adjusts the current of the demagnetizer 1.

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