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. 24, 1987
Filed:
Aug. 01, 1983
Applicant:
Inventor:
Mario Martinelli, Milan, IT;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356345 ; 250227 ; 356351 ;
Abstract
The detector comprises an electro-optical section for the signal analysis, a transmission fibre-optic, a fibre-optic coupling of high immunity to environmental noise, and a fibre-optic sensor terminating in a reflecting element. It can be provided in either homodyne or heterodyne version (phase or frequency modulation). This latter version has the advantage of detecting phase modulations exceeding 2.pi. radians. Both the versions have the advantage of enabling measurements to be made which are not influenced by environmental disturbances affecting the transmission fibre-optic.