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Patent Searching and Data


Title:
METHOD AND DEVICE FOR MEASURING TEMPERATURE AND/OR DEFORMATION ACCORDING TO BRILLOUIN SHIFT
Document Type and Number:
WIPO Patent Application WO/2020/056820
Kind Code:
A1
Abstract:
The present application relates to a method and device for measuring the temperature and/or deformation according to Brillouin shift. A section of bent optical fiber having both ends fixed is used, the effect of the strain on the Brillouin shift after the optical fiber is bent and both ends thereof are fixed is ignored to measure the Brillouin shift of the section of optical fiber, and the temperature can be obtained according to the relation between the Brillouin shift and the temperature. The Brillouin shift of a section of unfixed optical fiber at the certain temperature is then measured, and the strain is obtained through calculation. According to the present application, the temperature and the strain of an optical fiber node can be independently measured, the calculation is simple, and the result is accurate.

Inventors:
SHEN XIAOPING (CN)
HU ZIYANG (CN)
ZHOU LANYING (CN)
CAI WENJIE (CN)
CHEN BIN (CN)
ZHUANG HAOBING (CN)
Application Number:
PCT/CN2018/110593
Publication Date:
March 26, 2020
Filing Date:
October 17, 2018
Export Citation:
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Assignee:
TONGDING INTERCONNECTION INFORMATION CO LTD (CN)
International Classes:
G01B11/16; G01D21/02; G01K11/322; G01L11/02
Foreign References:
CN102645245A2012-08-22
CN102607621A2012-07-25
CN104142187A2014-11-12
Attorney, Agent or Firm:
SUZHOU ZHITU INTELLECTUAL PROPERTY FIRM (CN)
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