Title:
TEMPERATURE MEASUREMENT DEVICE, TEMPERATURE MEASUREMENT METHOD, AND TEMPERATURE MEASUREMENT PROGRAM
Document Type and Number:
WIPO Patent Application WO/2016/181542
Kind Code:
A1
Abstract:
This temperature measurement device is provided with: a detector that detects a first Stokes component and a first anti-Stokes component in back-scattered light produced when light enters a first end of an optical fiber, and detects a second Stokes component and a second anti-Stokes component in back-scattered light produced when light enters a second end of the optical fiber; a correction unit that, within a prescribed region containing a sample point of a partial region of the first end side of the optical fiber, replaces the second anti-Stokes component with a value corresponding to the first Stokes component, the first anti-Stokes component, and the second Stokes component if any size of a correlation of the second anti-Stokes component to the first Stokes component and the first anti-Stokes component is less than or equal to a threshold value; and a measurement unit that measures the temperature at the sample point using the first Stokes component, the first anti-Stokes component, the second Stokes component, and the second anti-Stokes component, which was replaced by the correction unit.
Inventors:
UNO KAZUSHI (JP)
KASAJIMA TAKEO (JP)
ARIOKA TAKAHIRO (JP)
FUKUDA HIROYUKI (JP)
KASAJIMA TAKEO (JP)
ARIOKA TAKAHIRO (JP)
FUKUDA HIROYUKI (JP)
Application Number:
PCT/JP2015/063838
Publication Date:
November 17, 2016
Filing Date:
May 13, 2015
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
G01K11/32
Foreign References:
| JP2010156549A | 2010-07-15 | |||
| JP2014173877A | 2014-09-22 | |||
| JPH01232228A | 1989-09-18 |
Attorney, Agent or Firm:
KATAYAMA, SHUHEI (JP)
Shuhei Katayama (JP)
Shuhei Katayama (JP)
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