An ultrasonic measurement of magnetostriction

Author

Igarashi, B. ; Alers, G.A. ; Purtscher, P.T.

Author_Institution

Mater. Reliability Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA

Volume

1

fYear

1997

fDate

5-8 Oct 1997

Firstpage

709

Abstract

The amplitudes of shear horizontal plate waves generated by EMATs (electromagnetic acoustic transducers) are measured to obtain estimates of the magnetostriction of a steel specimen. The wave amplitude is linked to magnetostriction through an existing model that is modified in the present work to extend its applicability to a broader range of magnetic fields. Measurements with intermediate levels of EMAT currents yield estimates that best agree with strain-gage measurements of the magnetostriction

Keywords

carbon steel; ferromagnetic materials; magnetic variables measurement; magnetostriction; surface acoustic waves; ultrasonic measurement; ultrasonic transducers; B-H curve; electromagnetic acoustic transducers; magnetostriction; plate wave amplitudes; shear horizontal plate waves; ultralow-carbon steel specimen; ultrasonic measurement; Acoustic measurements; Acoustic transducers; Amplitude estimation; Current measurement; Electromagnetic measurements; Electromagnetic scattering; Magnetic field measurement; Magnetostriction; Steel; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE

Conference_Location

Toronto, Ont.

ISSN

1051-0117

Print_ISBN

0-7803-4153-8

Type

conf

DOI

10.1109/ULTSYM.1997.663116

Filename

663116