Design of an All-Fiber Fabry-Perot Sensor for Strain Measurement in Radiative Environment

被引：3
|
作者：
Yang, Tingting [1 ]
Ran, Zengling [1 ]
He, Xiu [1 ]
Gan, Lupeng [1 ]
He, Zhengxi [1 ,2 ]
Zhu, Jialiang [2 ]
He, Peng [2 ]
Li, Zhuoyue [2 ]
Sun, Dong [3 ]
机构：
[1] Univ Elect Sci & Technol China, Key Lab Opt Fiber Sensing & Commun, Minist Educ, Chengdu 611731, Peoples R China
[2] Nucl Power Inst China, Sci & Technol Reactor Syst Design Technol Lab, Chengdu 610213, Peoples R China
[3] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 611731, Peoples R China
来源：
PHOTONIC SENSORS | 2022年 / 12卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Gamma radiation; Fabry-Perot sensor; radiation-induced compaction; strain sensing; COMPACTION; NEUTRON;
D O I：
10.1007/s13320-022-0645-x
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A length-matched micro Fabry-Perot (FP) interferometer is proposed for strain measurement under irradiation environment. Theoretical simulation shows that a well length-matched FP sensor can achieve a very low drift of the cavity length and strain sensitivity in irradiation environment. In experiment, such an FP cavity is realized by laser micromachining. It shows a low cavity length drift of -0.037 mu m and a strain sensitivity deviation of 0.52%, respectively, under gamma irradiation. Meanwhile, the intensity of interference fringes is also stable. As a result, such a length-matched FP cavity is a very promising candidate for strain sensing in radiative environments.
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页数：10
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