Title:
ファイバーブラッグ回析格子センサー
Document Type and Number:
Japanese Patent JP2008534982
Kind Code:
A
Abstract:
An optical fiber strain sensor, a method of fabricating the same, and a method of sensing strain (1200). 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 (1202); 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 (1204); and optically interrogating the first and second FBG to determine peak reflection wavelengths of the first and second FBGs respectively (1206), whereby a separation between the peak reflection wavelengths of the first and second FBGs is representative of the strain induced.
Inventors:
Hao Junchong
Shiro Takahashi
Ng Jun Hung
Shiro Takahashi
Ng Jun Hung
Application Number:
JP2008505270A
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 | |||
| US6563969B2 | 2003-05-13 | |||
| US6471710B1 | 2002-10-29 | |||
| WO2002046712A1 | 2002-06-13 |
Attorney, Agent or Firm:
Mitsuo Tanaka
Hiroshi Yamazaki
Masaki Yano
Hiroshi Yamazaki
Masaki Yano