Simultaneous Measurement of Temperature and Strain Using Spheroidal-Cavity-Overlapped FBG
| Autor: | Junfeng Jiang, Tiegen Liu, Shuang Wang, Yuheng Pan, Jinde Yin, Yan Jinling, He Pan, Kun Liu |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
lcsh:Applied optics. Photonics
PHOSFOS Materials science business.industry Fabry-Perot FBG Center (category theory) lcsh:TA1501-1820 Fiber optics sensor Temperature measurement Atomic and Molecular Physics and Optics Interferometry Optics Fiber Bragg grating Fiber optic sensor lcsh:QC350-467 Fiber Sensitivity (control systems) Electrical and Electronic Engineering business temperature and strain simultaneous measurement lcsh:Optics. Light |
| Zdroj: | IEEE Photonics Journal, Vol 7, Iss 6, Pp 1-6 (2015) |
| ISSN: | 1943-0655 |
| Popis: | We demonstrated a fiber-optic sensor using spheroidal-cavity-overlapped fiber Bragg grating (FBG) for simultaneous temperature and strain sensing. The spheroidal cavity is fabricated through splicing two sections of the photon-sensitive fiber together and located in the center of the FBG to act as a Fabry-Pérot interferometer (FPI). Experimental results demonstrate that the temperature sensitivity of the FPI part of the sensor is 0.67 pm/°C at the range of -70 °C-20 °C, and its strain sensitivity is 3.76 pm/με at the range of 0-500 με, while those of the FBG part are 8.40 pm/°C and 1.40 pm/με, respectively. The sensitivity difference ensures good simultaneous measurement performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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