Inductive sensor to detect metal impurities in non-metallic medium

International Conference on Mechanical Engineering, Automation and Control Systems 2016

机械制造;无线电电子学;计算机科学

Bykovsky, N.A.^1 ; Puchkova, L.N.^1 ; Fanakova, N.N.^1

Sterlitamak Branch of Ufa State Petroleum Technological University, 2, Octyabrya ave., Sterlitamak, Bashkortostan

453118, Russia^1

关键词: Ferromagnetics;    Induced magnetic moments;    Induction coils;    Magnetic field induction;    Metal impurities;    Metal samples;    Non-magnetic materials;    Non-metallic;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/177/1/012059/pdf
DOI  :  10.1088/1757-899X/177/1/012059

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The mathematical model for an induction detector intended for detection of metal impurities is examined. The detector consists of three coils. The centre coil serves to induct a magnetic moment in the metal sample, and side coils are used to record this moment during the sample propulsion through the detector. It is shown that at an identical value of the magnetic field induction, created by the induction coil in the unit volume of the sample, the induced magnetic moment is defined by magnetic susceptibility for ferromagnetics, and for nonmagnetic materials - by their electric conductivity.