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:
Apr. 20, 2010
Filed:
Apr. 05, 2006
Jianzhong Hao, Singapore, SG;
Jun Hong NG, Singapore, SG;
Shiro Takahasi, Ibaraki, JP;
Agency for Science, Technology and Research, Singapore, SG;
Abstract
An optical fiber strain sensor, a method of fabricating the same, and a method of sensing strain (). The method of strain sensing comprises providing an optical fiber having at least a first fiber Bragg grating (FBG) and a second FBG formed therein (); subjecting the optical fiber to a strain inducing force such that a grating period in the first FBG compresses and a grating period in the second FBG extends (); and optically interrogating the first and second FBG to determine peak reflection wavelengths of the first and second FBGs respectively (), whereby a separation between the peak reflection wavelengths of the first and second FBGs is representative of the strain induced.
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