Non-destructive testing with magnetic sensor using rotational magnetic flux.
Open Access
- 1 January 1991
- journal article
- Published by The Magnetics Society of Japan in Journal of the Magnetics Society of Japan
- Vol. 15 (2) , 455-460
- https://doi.org/10.3379/jmsjmag.15.455
Abstract
This paper presents a new non-destructive testing (NDT) method using rotational magnetic flux. In conventional eddy current NDT, the magnetic sensor has been driven by dc or alternative current. Therefore. the genarated magnetic field in the magnetic material is arranged in one direction. However, in order to estimate shape or position of an unknown defect, a two-dimensional alternating magnetic flux density vector is necessary. The NDT system using rotational magnetic flux is proposed. In this system, the magnitude and phase value are obtained as the signals of defect.Keywords
This publication has 2 references indexed in Scilit:
- Simulation analysis of magnetic sensor for nondestructive testing by boundary element methodIEEE Transactions on Magnetics, 1990
- Measurement iron loss using rotational magnetic loss measurement apparatus.Journal of the Magnetics Society of Japan, 1990