Наука и техника (Jun 2011)
DEVICES AND METHODS FOR QUALITY CONTROL OF OBJECTS MADE OF MAGNETIC AND ELECTRO-CONDUCTING MATERIALS
Abstract
The paper presents an experimental unit with computer measuring systems software support for control of objects’ properties which are made of electro-conducting and magnetic materials in impulse magnetic fields. Experimental dependences pertaining to value variations of electric voltage taken from induction magnetic head scanning a magnetic carrier at action of an impulse magnetic field on electro-conducting object have been obtained in the paper. Application of the dependences permits significantly to improve control accuracy. The paper contains the developed magneto-graphic, magneto-optic and the Hall methods and devices used to control physical properties of objects made of electro-conducting and magnetic materials in an impulse magnetic field. All these methods and devices allow to increase an accuracy control.