High-Sensitivity Gas-Pressure Sensor Based on Fiber-Tip PVC Diaphragm Fabry–Pérot Interferometer

2017 ◽  
Vol 35 (18) ◽  
pp. 4067-4071 ◽  
Author(s):  
Zhe Zhang ◽  
Changrui Liao ◽  
Jian Tang ◽  
Zhiyong Bai ◽  
Kuikui Guo ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Fabry Perot

scholarly journals High Sensitivity Fiber Gas Pressure Sensor with Two Separated Fabry–Pérot Interferometers Based on the Vernier Effect

Photonics ◽  
2022 ◽  
Vol 9 (1) ◽  
pp. 31
Author(s):  
Xiaokang Song ◽  
Liangtao Hou ◽  
Xiangyu Wei ◽  
Hang Su ◽  
Chang Li ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Single Mode ◽  
Gas Pressure ◽  
Pressure Sensing ◽  
Fabry Perot ◽  
Inner Diameter ◽  
Vernier Effect ◽  
Micro Cavity

A high sensitivity optical fiber gas pressure sensor based on paralleled Fabry–Pérot interferometers (FPIs) was demonstrated. One micro-cavity FPI is used as a reference FPI (FPI-1) to generate a Vernier effect and the other FPI (FPI-2) is used as a sensing tip. Both FPIs are connected by a 3-dB coupler to form a paralleled structure. The FPI-1 was fabricated by fusion splicing a piece of hollow core fiber (HCF) between two sections of single-mode fibers (SMF), whereas FPI-2 was formed by fusion splicing a section of HCF between SMF and a piece of HCF with a slightly smaller inner diameter for sensing pressure. The gas pressure sensitivity was amplified from 4 nm/MPa of single FPI to 45.76 nm/MPa of paralleled FPIs with an amplification factor of 11.44 and a linearity of 99.9%. Compared with the traditional fiber gas pressure sensors, the proposed sensor showed great advantages in sensitivity, mechanical strength, cost, and temperature influence resistant, which has potential in adverse-circumstance gas pressure sensing.

scholarly journals Remote Gas Pressure Sensor Based on Fiber Ring Laser Embedded With Fabry–Pérot Interferometer and Sagnac Loop

2016 ◽  
Vol 8 (5) ◽  
pp. 1-8 ◽  
Author(s):  
Jia Shi ◽  
Yuye Wang ◽  
Degang Xu ◽  
Yixin He ◽  
Junfeng Jiang ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Ring Laser ◽  
Gas Pressure ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Fabry Perot

scholarly journals Gas Pressure Sensor Based on BDK-Doped Polymer Optical Fiber

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 717 ◽  
Author(s):  
Xin Cheng ◽  
Yi Liu ◽  
Changyuan Yu
Keyword(s):  
Optical Fiber ◽  
Pressure Sensor ◽  
Chemical Structure ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Air Pressure ◽  
Response Behavior ◽  
Polymer Optical Fiber ◽  
The Stability ◽  
Doped Polymer

This paper presents a high sensitivity gas pressure sensor with benzyl-dimethylketal (BDK)-doped polymer optical fiber Bragg grating (POFBG), whose sensitivity is up to 8.12 pm/kPa and 12.12 pm/kPa in positive and negative pressure atmosphere, respectively. The high sensitivity can be explained by its porous chemical structure. The stability and response behavior under air pressure atmosphere has also been investigated. The new understanding of the air pressure response principle and sensitivity difference for the presented sensor can be a worthy reference.

A diaphragm-free fiber Fabry-Perot gas pressure sensor

2019 ◽  
Vol 90 (2) ◽  
pp. 025005 ◽  
Author(s):  
L. Zhang ◽  
Y. Jiang ◽  
H. Gao ◽  
J. Jia ◽  
Y. Cui ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Gas Pressure ◽  
Fabry Perot

High-Sensitivity Gas Pressure Fabry–Perot Fiber Probe With Micro-Channel Based on Vernier Effect

2019 ◽  
Vol 37 (14) ◽  
pp. 3444-3451 ◽  
Author(s):  
Zhe Li ◽  
Yan-Xin Zhang ◽  
Wei-Gang Zhang ◽  
Ling-Xin Kong ◽  
Tie-Yi Yan ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Gas Pressure ◽  
Micro Channel ◽  
Fiber Probe ◽  
Fabry Perot ◽  
Vernier Effect

High-sensitivity gas pressure sensor based on a multimode interferometer using hollow-core tube lattice fiber

2020 ◽  
Vol 45 (16) ◽  
pp. 4571
Author(s):  
Zhengyong Li ◽  
Changrui Liao ◽  
Yatao Yang ◽  
Ying Wang ◽  
Yiping Wang
Keyword(s):  
Pressure Sensor ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Hollow Core ◽  
Core Tube
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