Long dual‐cavity fiber optic Fabry‐Perot strain sensor with rugate mirrors

1996 ◽  
Vol 35 (4) ◽  
pp. 1059 ◽  
Author(s):  
Anatoli A. Chtcherbakov
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Fabry Perot

Research of unsymmetrical intrinsic Fabry-Perot fiber optic strain sensor

2005 ◽  
Author(s):  
Yanjun Zhang ◽  
Yuefeng Qi ◽  
Guangwei Fu ◽  
Weihong Bi
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Fabry Perot

Fiber-optic Fabry?Perot strain sensor based on graded-index multimode fiber

2011 ◽  
Vol 9 (5) ◽  
pp. 050602-50605 ◽  
Author(s):  
赵天 Tian Zhao ◽  
龚元 Yuan Gong ◽  
饶云江 Yunjiang Rao ◽  
吴宇 Yu Wu ◽  
冉曾令 Zengling Ran ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Multimode Fiber ◽  
Graded Index ◽  
Fabry Perot

Non-Scanning Correlation Demodulation for Fiber-Optic Fabry-Perot Microcavity Strain Sensor

2019 ◽  
Vol 56 (17) ◽  
pp. 170630
Author(s):  
寇琬莹 Wanying Kou ◽  
王伟 Wei Wang ◽  
陈海滨 Haibin Chen ◽  
张天阳 Tianyang Zhang ◽  
吕文涛 Wentao Lü
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Fabry Perot

scholarly journals Fiber-optic extrinsic Fabry-Perot interferometer strain sensor with <50 pm displacement resolution using three-wavelength digital phase demodulation

2001 ◽  
Vol 8 (8) ◽  
pp. 475 ◽  
Author(s):  
Markus Schmidt ◽  
Bernd Werther ◽  
Norbert Fuerstenau ◽  
Michael Matthias ◽  
Tobias Melz
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Digital Phase ◽  
Fabry Perot ◽  
Phase Demodulation

scholarly journals Sensitivity-Enhanced Extrinsic Fabry–Perot Interferometric Fiber-Optic Microcavity Strain Sensor

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4097
Author(s):  
Zhibo Ma ◽  
Shaolei Cheng ◽  
Wanying Kou ◽  
Haibin Chen ◽  
Wei Wang ◽  
...  
Keyword(s):  
Sensitive Element ◽  
Cavity Length ◽  
Fiber Optic ◽  
Strain Sensor ◽  
Single Mode ◽  
Glass Capillary ◽  
Capillary Length ◽  
Uv Curable ◽  
Strain Measurements ◽  
Fabry Perot

This study presents an extrinsic Fabry–Perot interferometric (EFPI) fiber-optic strain sensor with a very short cavity. The sensor consists of two vertically cut standard single-mode fibers (SMFs) and a glass capillary with a length of several centimeters. The two SMFs penetrate into the glass capillary and are fixed at its two ends with the use of ultraviolet (UV) curable adhesives. Based on the use of the lengthy glass capillary sensitive element, the strain sensitivity can be greatly enhanced. Experiments showed that the microcavity EPFI strain sensor with initial cavity lengths of 20 μm, 30 μm, and 40 μm, and a capillary length of 40 mm, can yield respective cavity length–strain sensitivities of 15.928 nm/με, 25.281 nm/με, and 40.178 nm/με, while its linearity was very close to unity for strain measurements spanning a range in excess of 3500 με. Furthermore, the strain–temperature cross-sensitivity was extremely low.

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