Compact fiber Fabry–Perot sensors filled with PNIPAM hydrogel for highly sensitive relative humidity measurement

Ru-Lei Xia,Juan Liu,Jiulin Shi,Xing-Dao He,Jinhui Yuan,Andrew R. Pike,Liang Chu,Qiang Wu,Bin Liu

Measurement（2022）

引用 5|浏览11

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摘要

•First propose using PNIPAM hydrogel for relative humidity detection by filling fiber Fabry–Perot interferometer structure.•Ultra-high sensitivity of 1.634 nm/%RH with good repeatability.•Realizes the application for effectively respiratory monitoring with response and recovery time of 0.91 s and 1.91 s, respectively.

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关键词

Fiber-optic sensor,PNIPAM hydrogel,Fabry-Perot interferometer (FPI),Relative humidity (RH)

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