Simultaneous strain and temperature measurement using a compact photonic crystal fiber inter-modal interferometer and a fiber Bragg grating
| Autor: | Chin-Yi Liaw, Bo Dong, Jianzhong Hao, Bo Lin, Swee Chuan Tjin |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
PHOSFOS
Materials science business.industry Materials Science (miscellaneous) Polarization-maintaining optical fiber Long-period fiber grating Graded-index fiber Industrial and Manufacturing Engineering Optics Fiber Bragg grating Fiber optic sensor Optoelectronics Business and International Management Plastic optical fiber business Photonic-crystal fiber |
| Zdroj: | Applied optics. 49(32) |
| ISSN: | 1539-4522 |
| Popis: | An all-fiber sensor scheme for simultaneous strain and temperature measurement is presented. The sensing head is formed by serially connecting a polarization maintaining photonic-crystal-fiber-based inter-modal interferometer (IMI) with a fiber Bragg grating (FBG). The IMI, exhibiting an opposite strain response as compared to that of the FBG, is highly sensitive to strain, while it is insensitive to temperature. This has potential for improving the strain and temperature measurement resolutions. A sensor resolution of ±8.3 μe in strain and ±2 °C in temperature are experimentally achieved within a strain range of 0-957.6 μe and a temperature range of 24 °C-64 °C, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|