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:
Aug. 11, 1992
Filed:
Mar. 25, 1991
Applicant:
Inventors:
Rene Heon, Longueuil, CA;
Jean-Pierre Monchalin, Montreal, CA;
Assignee:
National Research Council of Canada, Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356352 ; 356358 ; 73657 ;
Abstract
An optical detection of a surface motion of an object is disclosed. An optical interferometer receives a laser light which is scattered from the surface of the object and transmitted through a substantial length of an optical fiber. The stabilization is carried out by a signal which is obtained by processing signals generated by a reference detector and a stabilization detector located respectively at the input side and the output side of the interferometer.