Laser & Optoelectronics Progress, Volume. 55, Issue 5, 050605(2018)
Strain Sensing Measurement Technology for Fiber Bragg Grating with Holder Type Temperature Self-Compensation
In view of the characteristics of cross-sensitivity between strain and temperature of fiber Bragg grating(FBG), the temperature-compensation FBG structure is in series with strain FBG structure based on holder type packaging. The structure strain can be acquired by the relative wavelength shift between temperature FBG and strain FBG. The experimental results indicate that temperature sensitivity induced by relative wavelength shift is only 0.12 pm·℃ -1, which is 1.14% and 1.15% of temperature sensitivity of temperature FBG and strain FBG. The FBG strain measurement possesses good performances on temperature compensation. The principle of FBG strain sensing measurement technology with holder type temperature compensation is simple, and the operation is convenient. It can be applied widely to practical engineering.
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Yonghong Wang, Mingyi Zhang, Chunwei Zhang, Xiaoyu Bai, Songkui Sang. Strain Sensing Measurement Technology for Fiber Bragg Grating with Holder Type Temperature Self-Compensation[J]. Laser & Optoelectronics Progress, 2018, 55(5): 050605
Category: Fiber Optics and Optical Communications
Received: Sep. 22, 2017
Accepted: --
Published Online: Sep. 11, 2018
The Author Email: Wang Yonghong (hong7986@163.com)