Magnetostriction type stress detector

Details Magnetostriction type stress detector Magnetostriction type stress detector

1990-05-24

1992-09-01

Razavi, Michael

Measuring and testing

Dynamometers

Responsive to torque

G01L 302

Patent

active

051429195

ABSTRACT:
A magnetostriction type stress detector including a passive member to which an external force is applied, which passive member is formed of a magnetic material; a magnetic shielding member provided around the passive member, which magnetic shielding member is formed with a plurality of slits; and a detection coil provided around the magnetic shielding member for detecting a change in magnetic permeability due to a stress in the passive member to be generated by the external force, through the slits of the magnetic shielding member.

REFERENCES:
patent: 3861206 (1975-01-01), Kawafune et al.
patent: 4414855 (1983-11-01), Iwasaki
patent: 4784003 (1988-01-01), Kimura et al.
patent: 4823617 (1989-04-01), Hase et al.
patent: 4823620 (1989-04-01), Edo et al.
patent: 5022275 (1991-06-01), Satoh et al.
IEEE Transactions on Magnetics vol. MAG-20, No. 5, 1984, pp. 951-53.

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