Title:
OPTICAL FIBER SENSING EXPANSION DEVICE AND OPTICAL FIBER SENSING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/111260
Kind Code:
A1
Abstract:
Provided according to the present disclosure is an optical fiber sensing expansion device (30) provided with a sensor unit (32) storing a sensing optical fiber (33), a fixing unit for fixing the sensor unit (32) to an object to be monitored (40), and a fiber connection unit (31) that can connect the sensing optical fiber (33) to an optical fiber (10). The fiber connection unit (31) superimposes a detection result from the sensor unit (32) on an optical signal transmitted by the optical fiber (10).
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Inventors:
YODA YUKIHIDE (JP)
AONO YOSHIAKI (JP)
AONO YOSHIAKI (JP)
Application Number:
PCT/JP2019/046875
Publication Date:
June 04, 2020
Filing Date:
November 29, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01D5/353
Foreign References:
| JP2005184772A | 2005-07-07 | |||
| JPH09270090A | 1997-10-14 | |||
| JP2007121008A | 2007-05-17 | |||
| JPH08278433A | 1996-10-22 | |||
| JPS61111100A | 1986-05-29 | |||
| JP2002310729A | 2002-10-23 | |||
| US5118931A | 1992-06-02 | |||
| JP2008309497A | 2008-12-25 | |||
| JP2018225989A | 2018-11-30 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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