A Composite Fabry-Perot Interferometric Sensor with the Dual-Cavity Structure for Simultaneous Measurement of High Temperature and Strain
| Autor: | Ping Xia, Zude Zhou, Caixia Yang, Kang Yun, Yuegang Tan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Optical fiber
Materials science Capillary action Composite number TP1-1185 01 natural sciences Biochemistry Article Analytical Chemistry law.invention 010309 optics strain law 0103 physical sciences simultaneous measurement Fiber composite sensor Electrical and Electronic Engineering Instrumentation dual-cavity business.industry Fabry-Perot Chemical technology 010401 analytical chemistry high-temperature Atomic and Molecular Physics and Optics 0104 chemical sciences Interferometry Transmission (telecommunications) Optoelectronics business photonic crystal fiber Fabry–Pérot interferometer Photonic-crystal fiber |
| Zdroj: | Sensors Volume 21 Issue 15 Sensors (Basel, Switzerland) Sensors, Vol 21, Iss 4989, p 4989 (2021) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s21154989 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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