Journal of the Magnetics Society of Japan
Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192
Chapter 10. Novel Scientific Instrumentation & Processing
Nondestructive Cross Evaluations of Iron-based Material by Magnetic Sensors and by Laser Speckle Interferometry
Koji Yamada, Sinnichi Shoji, Yosinori Tanaka, Yosihito Uno, Hiroyuki Takeda, Satoru Toyooka, Suprapedi, Yosihiro lsobe, Katuyuki Ara, Mitsuru Uesaka, Kenzo Miya
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Keywords: nondestructive cross evaluations, iron-based material, Hall sensor, discontinuous magnetization energy
JOURNAL OPEN ACCESS

1999 Volume 23 Issue 1_2 Pages 718-720

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Abstract

Nondestructive evaluations of iron-based material (A533B) have been investigated on the leakage flux from the surface by using Hall elements, on magnetic noises, on sub-micron deformations by Ar-laser speckle interferometry and on residual stresses by X-ray diffraction. A high resolution and high sensitivity for spatial inhomogeneity observation were attained as small as 200μm for residual strains less than 0.5 %.

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© 1999 by The Magnetics Society of Japan
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