An Ultra-Simple Microchannel-Free Fiber-Optic Gas-Pressure Sensor With Ultra-Fast Response

被引：19

作者：

Liu, Yi ^{[1
]}

Chen, Min ^{[2
]}

Li, Jinjian ^{[3
]}

Chen, Ming ^{[4
]}

Qu, Shiliang ^{[3
,5
]}

机构：

[1] Guilin Univ Elect Technol, Sch Elect Engn & Automat, Guilin 541004, Peoples R China

[2] Yancheng Biol Engn Higher Vocat Technol Sch, Yancheng 224051, Peoples R China

[3] Harbin Inst Technol, Sch Sci, Harbin 150001, Peoples R China

[4] Guilin Univ Elect Technol, Informat & Commun Coll, Guilin 541004, Peoples R China

[5] Guilin Univ Elect Technol, Sch Elect Engn & Automat, Guilin 541004, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2022年 / 22卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Sensors; Optical fiber sensors; Temperature sensors; Interference; Reflection; Optical fibers; Gas detectors; Interferometers; optical fiber sensors; optical waveguides; pressure measurement; temperature measurement; OPTICAL-FIBER; REFRACTIVE-INDEX; INTERFEROMETER; MECHANISM; GUIDANCE; PROBE; LIGHT;

D O I：

10.1109/JSEN.2022.3151368

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An ultra-simple microchannel-free fiber-optic gas-pressure sensor based on a section of quartz capillary is proposed. The resonance peaks and interference fringes can be both shown in the reflection spectrum and they are both sensitive to the variation of the gas refractive index and temperature. The gas-pressure can be demodulated by using sensing matrix. As the quartz capillary is open completely at its end, the pressure response time is reduced to 0.02s for the pressure variation of 0.1MPa. The proposed sensor can have actual applications in 24-hour gas-pressure monitoring and early warning in harsh environment, because of its ultra-simple and all-silica structure, ultra-fast response, good repeatability, and ultra-low fabrication cost.

引用

页码：6621 / 6627

页数：7

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