Fiber-Optic Hydrogen Sensors: A Review

Optical fiber hydrogen sensor has become a research hotspot once proposed, since its unique properties of intrinsic safety. In the past three decades, varieties of optical fiber hydrogen sensors have been proposed, which could be categorized into five types, including interference type, micromirror...

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Bibliographic Details
Published inIEEE sensors journal Vol. 21; no. 11; pp. 12706 - 12718
Main Authors Wang, Gaopeng, Dai, Jixiang, Yang, Minghong
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bragg gratings
Chemical sensors
Fiber optics
Hydrogen
Metals
microstructure
nanostructures
Optical fiber polarization
Optical fiber sensors
Optical fibers
Optical interferometry
palladium alloys
Sensors
Temperature sensors
tungsten trioxide
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Summary:Optical fiber hydrogen sensor has become a research hotspot once proposed, since its unique properties of intrinsic safety. In the past three decades, varieties of optical fiber hydrogen sensors have been proposed, which could be categorized into five types, including interference type, micromirror type, evanescent field type, surface plasmon resonance type, and fiber Bragg grating type. This review focuses on the representative of the above five types of hydrogen sensors, based on Pd alloy or/and WO 3 sensitive materials. Whereas, their structures, characteristics, and sensing performances are critically overviewed.
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ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2020.3029519