期刊
IEEE SENSORS JOURNAL
卷 15, 期 10, 页码 5450-5454出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2015.2444100
关键词
Fiber Bragg grating (FBG) sensor; cross-sensitivity; highly birefringent fiber; relative humidity; temperature; thermal compensation
资金
- Slovak Research and Development Agency [APVV006211]
- European Union through the Operational Program Research and Development for Innovation within the University Centre for Energy Efficient Buildings [CZ.1.05/2.1.00/03.0091]
- European Social Fund through the Support of InterSectoral Mobility and Quality Enhancement of Research Teams, Czech Technical University, in Prague [CZ.1.07/2.3.00/30.0034]
A novel fiber-optic relative humidity (RH) sensor with thermal compensation based on a fiber Bragg grating (FBG) is presented. Changes in the RH are transduced to the FBG properties by an ORMOCER coating. The cross sensitivity to temperature is compensated by inscribing the Bragg grating in a highly birefringent fiber and using the individual Bragg peaks of each polarization direction for separation (discrimination) of temperature and humidity influences.
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