WO2009016457A3 - Filter for an optical fibre temperature sensor - Google Patents
Filter for an optical fibre temperature sensor Download PDFInfo
- Publication number
- WO2009016457A3 WO2009016457A3 PCT/IB2008/001943 IB2008001943W WO2009016457A3 WO 2009016457 A3 WO2009016457 A3 WO 2009016457A3 IB 2008001943 W IB2008001943 W IB 2008001943W WO 2009016457 A3 WO2009016457 A3 WO 2009016457A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- temperature sensor
- optical fibre
- optical
- fibre temperature
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Filtering Materials (AREA)
Abstract
A filter for an optical fibre temperature sensor comprising at least one first and one second optical filter for filtering an optical pulse reflected by said optical fibre, characterised in that said at least one first and one second optical filter comprise standard commercial filters complying with ITU specifications, said optical pulse lying within the range from 1570 nm to 1580 nm.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08788927.5A EP2183562B1 (en) | 2007-07-31 | 2008-07-25 | Filter for an optical fibre temperature sensor |
US12/670,864 US8575540B2 (en) | 2007-07-31 | 2008-07-25 | Filter for an optical fibre temperature sensor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000041A ITBG20070041A1 (en) | 2007-07-31 | 2007-07-31 | FILTER FOR A FIBER OPTIC TEMPERATURE SENSOR AND RELATED FILTERING METHOD |
ITBG2007A000041 | 2007-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009016457A2 WO2009016457A2 (en) | 2009-02-05 |
WO2009016457A3 true WO2009016457A3 (en) | 2009-03-26 |
Family
ID=40210733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2008/001943 WO2009016457A2 (en) | 2007-07-31 | 2008-07-25 | Filter for an optical fibre temperature sensor |
Country Status (4)
Country | Link |
---|---|
US (1) | US8575540B2 (en) |
EP (1) | EP2183562B1 (en) |
IT (1) | ITBG20070041A1 (en) |
WO (1) | WO2009016457A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9574949B2 (en) | 2012-02-17 | 2017-02-21 | Roctest Ltd | Automated system and method for testing the efficacy and reliability of distributed temperature sensing systems |
JP5742861B2 (en) * | 2013-02-28 | 2015-07-01 | 横河電機株式会社 | Optical fiber temperature distribution measuring device |
CN104568228B (en) * | 2015-01-04 | 2017-04-12 | 山东微感光电子有限公司 | Calibration method when attenuation coefficients of DTS are different |
CN104952200A (en) * | 2015-06-20 | 2015-09-30 | 宁波南车时代传感技术有限公司 | DTS (Distributed Optical Fiber Temperature Sensor)-based distributed type train temperature monitoring device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5765948A (en) * | 1995-03-07 | 1998-06-16 | Kabushiki Kaisha Toshiba | Light-temperature distribution sensor using back scattering light produced by incident light pulse and temperature distribution measuring method |
US20030234921A1 (en) * | 2002-06-21 | 2003-12-25 | Tsutomu Yamate | Method for measuring and calibrating measurements using optical fiber distributed sensor |
US20070165691A1 (en) * | 2006-01-17 | 2007-07-19 | Weatherford/Lamb, Inc. | Corrected DTS measurements based on Raman-Stokes signals |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8520827D0 (en) * | 1985-08-20 | 1985-09-25 | York Ventures & Special Optica | Fibre-optic sensing devices |
ITBG20070042A1 (en) * | 2007-07-31 | 2009-02-01 | Milano Politecnico | SENSOR AND METHOD TO DETERMINE THE TEMPERATURE ALONG A FIBER OPTIC. |
-
2007
- 2007-07-31 IT IT000041A patent/ITBG20070041A1/en unknown
-
2008
- 2008-07-25 EP EP08788927.5A patent/EP2183562B1/en not_active Not-in-force
- 2008-07-25 WO PCT/IB2008/001943 patent/WO2009016457A2/en active Application Filing
- 2008-07-25 US US12/670,864 patent/US8575540B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5765948A (en) * | 1995-03-07 | 1998-06-16 | Kabushiki Kaisha Toshiba | Light-temperature distribution sensor using back scattering light produced by incident light pulse and temperature distribution measuring method |
US20030234921A1 (en) * | 2002-06-21 | 2003-12-25 | Tsutomu Yamate | Method for measuring and calibrating measurements using optical fiber distributed sensor |
US20070165691A1 (en) * | 2006-01-17 | 2007-07-19 | Weatherford/Lamb, Inc. | Corrected DTS measurements based on Raman-Stokes signals |
Non-Patent Citations (1)
Title |
---|
OPTO-LINK CORPORATION LTD: "Wavelength Division Multiplexer (WDM)", 25 February 2007 (2007-02-25), XP002510103, Retrieved from the Internet <URL:http:///web.archive.org/web/20070225162621/www.optolinkcorp.com/pdf/wdm.pdf> [retrieved on 20090113] * |
Also Published As
Publication number | Publication date |
---|---|
ITBG20070041A1 (en) | 2009-02-01 |
EP2183562A2 (en) | 2010-05-12 |
EP2183562B1 (en) | 2016-08-24 |
WO2009016457A2 (en) | 2009-02-05 |
US20100276576A1 (en) | 2010-11-04 |
US8575540B2 (en) | 2013-11-05 |
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