Humidity fiber sensors based on superstr
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Lung Ai; Wen-Fung Liu; Ming-Yue Fu; Tzu-Chiang Chen
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Article
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2009
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John Wiley and Sons
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English
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## Abstract A fiber sensor based on an etched superstructure fiber Bragg grating coated with the thin film of solโgel is used for measuring the relative humidity. The operation mechanism of this sensor is based on that solโgel materials can react with H~2~O molecules to result in its reflective ind