A simple strain sensor using polymer fibre Bragg grating and long period fibre grating

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Abstract
We develop a simple strain sensor using polymer optical fibre Bragg grating and long period fibre grating. The sensor head is formed by a polymer optical fiber Bragg grating. A long period fibre grating is used for strain related wavelength shift demodulation. This particular combination of two quite different gratings could offer very large dynamic, up to tens of thousands micro-strains, for strain sensing. The preliminary experimental results have demonstrated that this sensing scheme provides good linearity, high resolution and large dynamic range.
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Liu, Hongbo
Liu, Huiyong
Whitbread, Trevor
Rao, Yun-Jiang
Peng, Gang-Ding
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Publication Year
2004
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Conference Paper
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UNSW Faculty
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download 2005-SPIE-5634-Hongbo.pdf 52.49 KB Adobe Portable Document Format
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