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:
Mar. 13, 1984
Filed:
Jun. 29, 1981
James R Whitten, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A transducer for sensing the magnitude of a parameter, such as mechanical displacement/motion, pressure, temperature, electrical voltage, current and the like, uses a multimode optical waveguide fiber. At least one portion of the fiber is subjected to bending in an amount changing with a change in the sensed parameter magnitude. The resulting microbending losses in the fiber vary the attenuation of light energy between an optical source and an optical detector, response to variations in the sensed parameter magnitude. The variations of the detector output may be monotonically continuous, or may be processed to assume one of a pair of levels for 'on-off' switching purposes.