The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 1995
Filed:
Jun. 07, 1993
Applicant:
Inventors:
Makoto Takagi, Okazaki, JP;
Fusao Hirose, Kariya, JP;
Hideshi Mori, Chiryu, JP;
Nozomu Okumura, Nagoya, JP;
Toru Imura, Nagoya, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
148304 ; 428638 ; 73779 ; 73862625 ; 7386269 ;
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.