Fabry–Pérot cavities based on chemical etching for high temperature and strain measurement

2012 ◽  
Vol 285 (6) ◽  
pp. 1159-1162 ◽  
Author(s):  
Paula A.R. Tafulo ◽  
P.A.S. Jorge ◽  
J.L. Santos ◽  
O. Frazão
Keyword(s):  
High Temperature ◽  
Strain Measurement ◽  
Chemical Etching ◽  
Fabry Perot

scholarly journals A Composite Fabry-Perot Interferometric Sensor with the Dual-Cavity Structure for Simultaneous Measurement of High Temperature and Strain

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 4989
Author(s):  
Ping Xia ◽  
Yuegang Tan ◽  
Caixia Yang ◽  
Zude Zhou ◽  
Kang Yun
Keyword(s):  
High Temperature ◽  
Simultaneous Measurement ◽  
Strain Measurement ◽  
Fiber Composite ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Compact Structure ◽  
Cavity Structure ◽  
Fabry Perot ◽  
Interferometric Sensor

In this paper, an optical fiber composite Fabry-Perot interferometric (CFPI) sensor capable of simultaneous measurement of high temperature and strain is presented. The CFPI sensor consists of a silica-cavity intrinsic Fabry–Perot interferometer (IFPI) cascading an air-cavity extrinsic Fabry–Perot interferometer (EFPI). The IFPI is constructed at the end of the transmission single-mode fiber (SMF) by splicing a short piece of photonic crystal fiber (PCF) to SMF and then the IFPI is inserted into a quartz capillary with a reflective surface to form a single-ended sliding EFPI. In such a configuration, the IFPI is only sensitive to temperature and the EFPI is sensitive to strain, which allows the achieving of temperature-compensated strain measurement. The experimental results show that the proposed sensor has good high-temperature resistance up to 1000 °C. Strain measurement under high temperatures is demonstrated for high-temperature suitability and stable strain response. Featuring intrinsic safety, compact structure and small size, the proposed CFPI sensor may find important applications in the high-temperature harsh environment.

scholarly journals Acid number, viscosity and end-point detection in a multiphase high temperature polymerisation process using an online miniaturised MEMS Fabry-Pérot interferometer

Talanta ◽  
2021 ◽  
Vol 224 ◽  
pp. 121735
Author(s):  
Claudio Avila ◽  
Christos Mantzaridis ◽  
Joan Ferré ◽  
Rodrigo Rocha de Oliveira ◽  
Uula Kantojärvi ◽  
...  
Keyword(s):  
High Temperature ◽  
Acid Number ◽  
End Point ◽  
Fabry Perot ◽  
End Point Detection ◽  
Point Detection

1100°C fiber-optic high-temperature Fabry-Perot sensors fabricated by laser-micromachining

2011 ◽  
Author(s):  
Zengling Ran ◽  
Yong Chen ◽  
Yunjiang Rao ◽  
Dong Sun ◽  
En Lu ◽  
...  
Keyword(s):  
High Temperature ◽  
Fiber Optic ◽  
Laser Micromachining ◽  
Fabry Perot ◽  
C Fiber

Dual-Cavity Fabry–Perot Interferometric Sensors for the Simultaneous Measurement of High Temperature and High Pressure

2018 ◽  
Vol 18 (24) ◽  
pp. 10028-10033 ◽  
Author(s):  
Hongchun Gao ◽  
Yi Jiang ◽  
Yang Cui ◽  
Liuchao Zhang ◽  
Jingshan Jia ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Simultaneous Measurement ◽  
Interferometric Sensors ◽  
Fabry Perot

A Miniaturized Optical Fiber Tip High-Temperature Sensor Based on Concave-Shaped Fabry–Perot Cavity

2019 ◽  
Vol 31 (1) ◽  
pp. 35-38 ◽  
Author(s):  
Chen Zhu ◽  
Yiyang Zhuang ◽  
Bohong Zhang ◽  
Roman Muhammad ◽  
Philip P. Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Optical Fiber ◽  
Temperature Sensor ◽  
Fabry Perot ◽  
High Temperature Sensor
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