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.

引用

页数：10

共 43 条

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