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Sensors 2014, 14(3), 3986-4013; doi:10.3390/s140303986
Review

Toward a New Generation of Photonic Humidity Sensors

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Received: 1 January 2014 / Revised: 29 January 2014 / Accepted: 8 February 2014 / Published: 26 February 2014
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Abstract

This review offers new perspectives on the subject and highlights an area in need of further research. It includes an analysis of current scientific literature mainly covering the last decade and examines the trends in the development of electronic, acoustic and optical-fiber humidity sensors over this period. The major findings indicate that a new generation of sensor technology based on optical fibers is emerging. The current trends suggest that electronic humidity sensors could soon be replaced by sensors that are based on photonic structures. Recent scientific advances are expected to allow dedicated systems to avoid the relatively high price of interrogation modules that is currently a major disadvantage of fiber-based sensors.
Keywords: humidity sensor; relative humidity; adsorption dynamic analysis; acoustic; electronic; optic humidity sensor; relative humidity; adsorption dynamic analysis; acoustic; electronic; optic
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kolpakov, S.A.; Gordon, N.T.; Mou, C.; Zhou, K. Toward a New Generation of Photonic Humidity Sensors. Sensors 2014, 14, 3986-4013.

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