Metal treatment – Stock – Magnetic
Patent
1993-06-07
1995-09-12
Wyszomierski, George
Metal treatment
Stock
Magnetic
428638, 73779, 73862625, 7386269, G01B 724
Patent
active
054494184
ABSTRACT:
A strain sensor for detecting strain in automobiles, robots, and the like includes a magnetostrictive layer. The magnetostrictive layer is formed by irradiating an alloy layer with a high energy density beam (such as a laser) to form a magnetostrictive layer having an amorphous structure. The resulting magnetostrictive layer has a magnetic inductance in the direction of irradiation that is much higher than in a perpendicular direction thereof. Using such a sensor, it is possible to selectively detect components of stresses and strains in a given direction.
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William Fleming et al, "Noncontact Miniature Torque Sensor for Automotive Application", SAE Technical Paper Series, Feb. 22-26, 1982, pp. 47-62.
I. Sasada et al, "Torque Transducer with Stress-Sensitive Amorphous Ribbons of Chevron-Pattern", IEEE Transactions of Magnetics, vol. MAG-20 No. 5, Sep. 1984, pp. 951-953.
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Hirose Fusao
Imura Toru
Mori Hideshi
Okumura Nozomu
Takagi Makoto
Nippondenso Co. Ltd.
Wyszomierski George
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