Steven Trpkovski et al 2005 Meas. Sci. Technol. 16 488 doi:10.1088/0957-0233/16/2/022
Er3+:Yb3+ doped fibre with embedded FBG for simultaneous measurement of temperature and longitudinal strain
Steven Trpkovski1, Scott A Wade1,2, Stephen F Collins1 and Greg W Baxter1
Show affiliationsA method for measuring temperature and strain simultaneously using a combination of the shift in a fibre Bragg grating and the fluorescence intensity ratio from Er3+:Yb3+ doped fibre is presented. This sensor scheme has the advantage of co-located measurement of temperature and strain as the Bragg grating is written into the Er3+:Yb3+ doped fibre. A number of these sensors were calibrated over temperature and strain ranges of 20–150 °C and 350–2530 με, respectively, and the measurement data analysed using various techniques. Temperature and strain values inferred from the sensors during these calibrations showed rms errors in the order of 0.3 °C and 4.9 με.
- PACS
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07.60.Vg Fiber-optic instruments
06.20.fb Standards and calibration
06.20.Dk Measurement and error theory
- Subjects
- Dates
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Issue 2 (February 2005)
Received 19 August 2004, in final form 5 October 2004
Published 21 January 2005
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Er3+:Yb3+ doped fibre with embedded FBG for simultaneous measurement of temperature and longitudinal strain
Steven Trpkovski et al 2005 Meas. Sci. Technol. 16 488
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