Presentation 2015-02-27
Magnetic measurements of ferromagnetic metals via ultrasonic excitation
Hisato YAMADA, Kakeru WATANABE, Kenji IKUSHIMA,
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Abstract(in English) In this paper, we will report measurements of a magnetic hysteresis loop and the flaw inspection by using ultrasonic waves in a steel plate. The differential piezomagnetic coefficient determines the amplitude of acoustically stimulated electromagnetic (ASEM) fields, yielding the hysteresis behavior of the intensity of ASEM signals. By utilizing the high sensitivity to the magnetic-flux density of magnetizing processes, we image the specific spatial patterns of the flux density formed by an artificial defect of a steel plate specimen. Magnetic-flux probing by ultrasonic waves is thus shown to be a viable method for nondestructive material inspection.
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Keyword(in English) Ultrasound / Ferromagnetic / Magnetic Measurement
Paper # US2014-100
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Committee US
Conference Date 2015/2/20(1days)
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Language JPN
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Title (in English) Magnetic measurements of ferromagnetic metals via ultrasonic excitation
Sub Title (in English)
Keyword(1) Ultrasound
Keyword(2) Ferromagnetic
Keyword(3) Magnetic Measurement
1st Author's Name Hisato YAMADA
1st Author's Affiliation Department of Applied Physics, Tokyo University of Agriculture and Technology()
2nd Author's Name Kakeru WATANABE
2nd Author's Affiliation Department of Applied Physics, Tokyo University of Agriculture and Technology
3rd Author's Name Kenji IKUSHIMA
3rd Author's Affiliation Department of Applied Physics, Tokyo University of Agriculture and Technology
Date 2015-02-27
Paper # US2014-100
Volume (vol) vol.114
Number (no) 464
Page pp.pp.-
#Pages 5
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