Tapered Plastic Optical Fiber Coated With HEC/PVDF for Measurement of Relative Humidity

Batumalay, Malathy and Lokman, A. and Ahmad, F. and Arof, Hamzah and Ahmad, Harith and Harun, Sulaiman Wadi (2013) Tapered Plastic Optical Fiber Coated With HEC/PVDF for Measurement of Relative Humidity. IEEE Sensors Journal, 13 (12). pp. 4702-4705. ISSN 1530-437X, DOI https://doi.org/10.1109/JSEN.2013.2272329.

Full text not available from this repository.
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?...


A simple humidity sensor is proposed and demonstrated using a tapered plastic optical fiber (POF) as a probe. Its operation is based on intensity modulation technique using a tapered POF probe coated with a polymer blend of hydroxyethylcellulose/polyvinylidenefluoride (HEC/PVDF) composite that acts as the humidity sensitive cladding. The sensor is fabricated using an etching method and has a waist diameter of 0.45 mm and tapering length of 10 mm. As the relative humidity varies from 50% to 85%, the output voltage of the sensor increases linearly from 0.32 to 1.25 mV. The HEC/PVDF composite-coated sensor exhibits a sensitivity of 0.023 mV/% with a slope linearity of . The sensitivity of HEC/PVDF composite-coated cladding toward humidity stems from its ability to swell as humidity increases in the atmosphere resulting in a drop in its refractive index below that of the core and thus allowing more light to be transmitted through the tapered fiber.

Item Type: Article
Uncontrolled Keywords: Fiber optic sensor; Tapered plastic optical fiber; Humidity sensor; Relative humidity (RH); Hydroxyethylcellu- lose/polyvinylidenefluoride (HEC/PVDF)
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 29 Oct 2015 07:45
Last Modified: 09 Oct 2018 05:34
URI: http://eprints.um.edu.my/id/eprint/14388

Actions (login required)

View Item View Item