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Proceedings Paper

Coating based fiber Bragg grating humidity sensor array
Author(s): Lun-Kai Cheng; Arjen Boersma; Rob Jansen
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Paper Abstract

A coating based FBG humidity sensor is developed for distributed humidity sensing. The sensitivity of the coated FBG is optimized by varying the chemical composition and the thickness of the coating. A sensitivity of ~2 pm/%RH and a rapid response are demonstrated. The composition of the coating can be adapted for sensing other chemical elements. For the design and modeling of the responsive polymer coatings, a toolbox is developed. Using this toolbox, sensors for sour gas like CO2 and H2S for the Oil&Gas industry are developed. The results match well with the prediction.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842168 (7 November 2012); doi: 10.1117/12.973826
Show Author Affiliations
Lun-Kai Cheng, TNO (Netherlands)
Arjen Boersma, TNO (Netherlands)
Rob Jansen, TNO (Netherlands)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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