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

scholarly journals High-temperature fiber-optic Fabry-Perot interferometric sensors

2015 ◽  
Vol 86 (5) ◽  
pp. 055001 ◽  
Author(s):  
Wenhui Ding ◽  
Yi Jiang ◽  
Ran Gao ◽  
Yuewu Liu
Keyword(s):  
High Temperature ◽  
Fiber Optic ◽  
Interferometric Sensors ◽  
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 Compound Fabry–Pérot interferometer for simultaneous high-pressure and high-temperature measurement

2021 ◽  
Author(s):  
Zhangwei Ma ◽  
Jintao Chen ◽  
Heming Wei ◽  
Liang Zhang ◽  
Zhifeng Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Temperature Measurement ◽  
High Temperature Measurement ◽  
Fabry Perot

scholarly journals Highly Integrated All-Fiber FP/FBG Sensor for Accurate Measurement of Strain under High Temperature

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1867 ◽  
Author(s):  
Tingting Yang ◽  
Xiu He ◽  
Zengling Ran ◽  
Zhendong Xie ◽  
Yunjiang Rao ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
High Temperatures ◽  
Harsh Environments ◽  
Strain Characteristic ◽  
Fbg Sensor ◽  
Highly Sensitive ◽  
Fabry Perot ◽  
Potential Applications ◽  
Good Strain

Accurate measurement of strain is one of the most important issues for high temperature environments. We present a highly integrated all-fiber sensor to achieve precise measurements of strain/high-pressure, which consists of a fiber Bragg grating (FBG) inscribed by an 800 nm femtosecond laser cascaded with a micro extrinsic Fabry–Perot (FP) cavity fabricated by the 157 nm laser micromachining technique. FBG is sensitive to temperature, but insensitive to strain/pressure, whereas the FP is sensitive to strain/pressure, but has a small dependence on temperature. Therefore, such a cascaded sensor could be used for dual-parameter measurement and can work well at high temperatures. Experimental results indicate that this device exhibits a good strain characteristic at high temperatures and excellent high-pressure performance at room temperature. Due to its highly sensitive wavelength response, the proposed sensor will have remarkable potential applications in dual parameter sensing in harsh environments.

Measurement of high pressure and high temperature using a dual-cavity Fabry–Perot interferometer created in cascade hollow-core fibers

2018 ◽  
Vol 43 (24) ◽  
pp. 6009 ◽  
Author(s):  
Zhe Zhang ◽  
Jun He ◽  
Bin Du ◽  
Fengchan Zhang ◽  
Kuikui Guo ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Hollow Core ◽  
Fabry Perot
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