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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.:

US 4782705 B1

PDFFull Text
Date of Patent:
Nov. 08, 1988

Filed:

Jul. 10, 1987

Strain gauge

Applicant:
Inventors:

Horst Hoffmann, Pentling, DE;

Peter Kersten, Leonberg, DE;

Hans Volz, Schwieberdingen, DE;

Ulrich Seyfried, Stuttgart, DE;

Assignee:

Alcatel N.V., Amsterdam, NL;

Attorney:

Christie, Parker & Hale

Primary Examiner:

Stewart J Levy

Assistant Examiner:

Robert R Raevis

Int. Cl.
CPC ...
G01L / ; H01L / ;
U.S. Cl.
CPC ...
73776 ; 338 / ;
Abstract

A strain gauge comprised of a premagnetized ferromagnetic film wherein any change in length of the film is converted into a planar Hall voltage by employing the property of magnetostriction and the planar Hall effect. Alternately, a change in the length of the film can also be measured as a change in electric conductivity by employing the properties of magnetostriction and magnetoresistance. The strain gauge is deposited on a substrate by thin-film techniques and has a very high sensitivity.

Find Patent Forward Citations

Hoffmann, Horst. (1988). Strain gauge (U.S. Patent No. 4782705). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4782705

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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