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:
Dec. 07, 2004
Filed:
Nov. 15, 2002
Applicant:
Inventors:
Assignee:
National Tsing Hua University, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/00 ; G02B 6/34 ;
U.S. Cl.
CPC ...
G02B 6/00 ; G02B 6/34 ;
Abstract
The present invention provides a dual fiber Bragg grating strain sensor system, which comprises a broadband light source, a power reading unit, and a sensor unit having a first fiber Bragg grating and a second fiber Bragg grating placed adjacent to each other; wherein the broadband light reaches said sensor unit through said power reading unit, the light that corresponds to the intersection between the spectra of the two FBGs is backreflected and is detected by an optical power meter/detector at the detection port.