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Open AccessArticle

Gas Pressure Sensor Based on BDK-Doped Polymer Optical Fiber

by Xin Cheng 1, Yi Liu 1,2,* and Changyuan Yu 2
1
Photonics Research Centre, Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
2
Photonics Research Centre, Department of Electronic Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
*
Author to whom correspondence should be addressed.
Micromachines 2019, 10(11), 717; https://doi.org/10.3390/mi10110717
Received: 28 September 2019 / Revised: 16 October 2019 / Accepted: 21 October 2019 / Published: 24 October 2019
(This article belongs to the Special Issue IMCO 2019)
This paper presents a high sensitivity gas pressure sensor with benzyl-dimethylketal (BDK)-doped polymer optical fiber Bragg grating (POFBG), whose sensitivity is up to 8.12 pm/kPa and 12.12 pm/kPa in positive and negative pressure atmosphere, respectively. The high sensitivity can be explained by its porous chemical structure. The stability and response behavior under air pressure atmosphere has also been investigated. The new understanding of the air pressure response principle and sensitivity difference for the presented sensor can be a worthy reference. View Full-Text
Keywords: polymers; fiber Bragg gratings; photosensitive material; pressure sensitivity polymers; fiber Bragg gratings; photosensitive material; pressure sensitivity
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MDPI and ACS Style

Cheng, X.; Liu, Y.; Yu, C. Gas Pressure Sensor Based on BDK-Doped Polymer Optical Fiber. Micromachines 2019, 10, 717.

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