22 August 2016 Simultaneous measurement of pressure and temperature based on processed capillary tube and fiber Bragg grating
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Abstract
A hybrid optical fiber structure sensor for simultaneous measurement of temperature and low pressure based on Fabry–Perot (FP) interference and fiber Bragg grating (FBG) is proposed. The FP cavity is fabricated with a capillary pure silica tube, whose one end is surface processed to result in an open FP cavity. The measurement of refractive index change of different pressures has been achieved by monitoring the wavelength shift of the interference pattern in the reflection spectrum. The FP cavity is integrated with the FBG to obtain temperature measurement simultaneously.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Yun-Long Bai, Yun-Long Bai, Bin Yin, Bin Yin, Yan-Hui Qi, Yan-Hui Qi, You-Chao Jiang, You-Chao Jiang, Yue Wu, Yue Wu, Shui-Sheng Jian, Shui-Sheng Jian, } "Simultaneous measurement of pressure and temperature based on processed capillary tube and fiber Bragg grating," Optical Engineering 55(8), 080502 (22 August 2016). https://doi.org/10.1117/1.OE.55.8.080502 . Submission:
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