Title:
光ファイバ歪センサ
Document Type and Number:
Japanese Patent JP2008534981
Kind Code:
A
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 a fiber Bragg grating (FBG) formed therein; subjecting the optical fiber to a strain inducing force such that a grating period in a first portion of the FBG compresses and a grating period in a second portion of the FBG extends; and optically interrogating the FBG to determine a measure of a change in bandwidth of the FBG as a result of the compression and extension of the grating periods in the first and second portion respectively; whereby the measure of the change in the bandwidth is representative of the strain induced.
Inventors:
Chun Hong
Butterfly, Xiao Chun
Butterfly, Xiao Chun
Application Number:
JP2008505269A
Publication Date:
August 28, 2008
Filing Date:
April 05, 2006
Export Citation:
Assignee:
AGENCY FOR SCIENCE,TECHNOLOGY AND RESEARCH
International Classes:
G01B11/16; G01D5/353
Domestic Patent References:
| JP2003156367A | 2003-05-30 | |||
| JP2002257520A | 2002-09-11 |
Foreign References:
| WO2003001262A1 | 2003-01-03 | |||
| WO2002046712A1 | 2002-06-13 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation