Title:
TEMPERATURE MEASURING DEVICE USING OPTICAL FIBER BRAGG GRATING SENSOR
Document Type and Number:
WIPO Patent Application WO/2020/036380
Kind Code:
A1
Abstract:
The present invention relates to a temperature measuring device using an optical fiber Bragg grating sensor, comprising: an optical fiber wound one or more times on a ring part, which is has a preset diameter by rotating a part of the optical fiber once, thereby maintaining a predetermined shape; a housing in which the optical fiber is arranged; and an optical fiber Bragg grating sensor provided in a straight line part of the optical fiber, and thus the present invention prevents deformation of the optical fiber and the optical fiber Bragg grating sensor, which are arranged to be spaced apart at a predetermined distance in the housing, even when deformation occurs in the housing according to a change in the outside temperature, thereby accurately measuring temperature without distortion.
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Inventors:
LEE GEUM SUK (KR)
Application Number:
PCT/KR2019/010101
Publication Date:
February 20, 2020
Filing Date:
August 09, 2019
Export Citation:
Assignee:
LEE GEUM SUK (KR)
FBG KOREA INC (KR)
FBG KOREA INC (KR)
International Classes:
G01K11/32; G01K1/08
Domestic Patent References:
| WO2010030587A2 | 2010-03-18 |
Foreign References:
| KR101352063B1 | 2014-01-15 | |||
| JP5193111B2 | 2013-05-08 | |||
| US6351987B1 | 2002-03-05 | |||
| US20040202401A1 | 2004-10-14 | |||
| KR101057309B1 | 2011-08-16 | |||
| KR100992628B1 | 2010-11-05 | |||
| KR101504028B1 | 2015-03-18 |
Other References:
See also references of EP 3839459A4
Attorney, Agent or Firm:
WELL PATENT LAW FIRM (KR)
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