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.

Date of Patent:
Jul. 18, 1989

Filed:

Oct. 03, 1988
Applicant:
Inventors:

Helmut Seidel, Starnberg, DE;

Peter Deimel, Langenpreising, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G01D / ; G01D / ;
U.S. Cl.
CPC ...
350 9629 ; 350 9610 ; 350 9615 ; 250227 ; 2502 / ; 73653 ; 73655 ; 73800 ;
Abstract

A fiber optic sensor for the detection of mechanical quantities comprising a light source, a first fiber optic waveguide coupled to the light source, the front face of the first waveguide being ground at a 45.degree. angle to the axis of the fiber and mirrored, a second fiber optic waveguide arranged parallel to the first waveguide, the front face of the second waveguide being ground at a 45.degree. angle to the axis of the fiber and mirrored, the two mirrored faces being held opposite to one another, and a photoelement receiver coupled to the other end of the second waveguide. At least one of the waveguides can move either along the fiber axis or around the fiber axis relative to the other waveguide, the motion varying the light received by the receiver and thereby indicating the magnitude of the mechanical quantity.


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