Measuring and testing – Dynamometers – Responsive to torque
Patent
1990-05-30
1994-05-24
Chilcot, Jr., Richard E.
Measuring and testing
Dynamometers
Responsive to torque
73862333, 73862335, 324209, G01L 302
Patent
active
053138457
ABSTRACT:
A strain detector which is improved in corrosion resistance and moisture resistance and is high in reliability. The strain detector comprises a driven member, a magnetic shielding layer of a non-magnetic or diamagnetic material selectively formed on the driven member, a magnetic layer formed at a portion of the driven member at which the magnetic shielding layer is not formed, and a detecting coil provided corresponding to the magnetic layer. The magnetic layer may be formed in such a manner as to project from the driven member by selectively removing a surface of the driven member. Preferably, a protecting layer is formed on surfaces of the magnetic layer and the magnetic shielding layer. A process of producing such strain detector is also disclosed by which a magnetic shielding layer can be formed only at a required portion of a driven member readily in a short period of time.
REFERENCES:
patent: 3861206 (1975-01-01), Kawafune et al.
patent: 4414855 (1983-11-01), Iwasaki
patent: 4765192 (1988-09-01), Hase et al.
patent: 4805466 (1989-02-01), Schiessle et al.
patent: 4823620 (1989-04-01), Edo et al.
patent: 5022275 (1991-06-01), Satoh et al.
patent: 5036713 (1991-08-01), Ikeda et al.
"Torque Transducers with Stress-Sensitive Amorphous Ribbons of Chevron-Pattern", by I. Sasada et al, IEEE Transaction on Magnetics, vol. Mag.-20, No. 5 Sep. 1984, pp. 951-953.
U.S. appln. Ser. No. 07/285.554 filed Dec. 16, 1988, Art Unit 139.
Hayashi Kiyoshi
Ootera Susumu
Sato Hirosh
Utsui Yoshihiko
Chilcot Jr. Richard E.
Dougherty Elizabeth L.
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Strain detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Strain detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Strain detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1965643