Apparatus for measuring dynamic magnetostriction using accelerom

Details Apparatus for measuring dynamic magnetostriction using accelerom Apparatus for measuring dynamic magnetostriction using accelerom

1979-11-08

1982-03-23

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Stress in material measurement

324236, 324262, G01B 724, G01R 3318

Patent

active

043215351

ABSTRACT:
An apparatus for measuring dynamic magnetostriction subjects a test sample to a spatially uniform, sinusoidal magnetic field of constant peak amplitude. Accelerometers mounted on the test sample produce a first electrical signal representative of the acceleration of the test sample due to the induced magnetic field. The first electrical signal is integrated twice producing a signal representative of the displacement of the test sample due to the induced magnetic field. This signal is representative of the magnetostrictive movement of the test sample.

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