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Proceedings Paper

Comparison between PMMA and PVAC coated fiber Bragg grating sensors for relative humidity measurements
Author(s): R. Montanini; M. Latino; N. Donato; G. Neri
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Paper Abstract

The paper reports some preliminary results obtained on two polymer-coated fiber Bragg grating based humidity sensors fabricated using poly(methyl methacrylate) (PMMA) or poly(vinyl acetate) (PVAc) as sensing material. The calibration of the two sensors has been carried out in the 20 - 70 %RH range at three different temperatures (15, 30 and 45°C) using a two-pressure humidity generator. Repeatability and time response were assessed by means of multiple reversible RH step inputs. The PMMA-coated sensor prototype displayed overall much better performance when compared to the PVAc-coated one, although it manifested a somewhat higher temperature sensitivity.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842145 (17 October 2012); doi: 10.1117/12.970279
Show Author Affiliations
R. Montanini, Univ. of Messina (Italy)
M. Latino, Univ. of Messina (Italy)
N. Donato, Univ. of Messina (Italy)
G. Neri, Univ. of Messina (Italy)

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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