High sensitivity liquid level sensor based on dual side-hole fiber Mach–Zehnder interferometer

2019 ◽  
Vol 440 ◽  
pp. 194-200 ◽  
Author(s):  
Ye Tian ◽  
Tao Tan ◽  
Chao Duan ◽  
Bin Xu ◽  
Xiaochen Zhao ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Zehnder Interferometer ◽  
Liquid Level ◽  
Side Hole ◽  
Level Sensor ◽  
Liquid Level Sensor ◽  
Mach Zehnder Interferometer

scholarly journals Liquid Level Sensor Based on a V-Groove Structure Plastic Optical Fiber

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 3111 ◽  
Author(s):  
Chuanxin Teng ◽  
Houquan Liu ◽  
Hongchang Deng ◽  
Shijie Deng ◽  
Hongyan Yang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Structural Parameters ◽  
High Sensitivity ◽  
Cost Effective ◽  
Liquid Level ◽  
Plastic Optical Fiber ◽  
Sensing Applications ◽  
Level Sensor ◽  
Groove Structure ◽  
Liquid Level Sensor

A high sensitivity and easily fabricated liquid level sensor based on the V-groove structure plastic optical fiber (POF) was described. In the design, the V-groove structure on the POF is produced by using a die-press-print method, which effectively reduces the complexity of the fabrication process and makes it easier for mass production of liquid level sensors. This greatly enhances the usefulness of the proposed sensor in cost effective liquid level sensing applications. The transmission characteristic of the POF could be changed when the V-groove structure was immerged or emerged by the rising or falling liquid. The liquid level sensing performances for the sensor probes with different structural parameters were investigated, and the sensor performances for the liquids with different refractive indices and the sensor dynamic response were also tested. Experimental results show that the sensor’s sensitivity can reach 0.0698 mm−1, with a resolution of 2.5 mm. Results also show that the sensor has a fast response time of 920 ms.

High sensitivity optical fiber liquid level sensor based on a compact MMF-HCF-FBG structure

2018 ◽  
Vol 29 (5) ◽  
pp. 055104 ◽  
Author(s):  
Yunshan Zhang ◽  
Weigang Zhang ◽  
Lei Chen ◽  
Yanxin Zhang ◽  
Song Wang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
High Sensitivity ◽  
Liquid Level ◽  
Level Sensor ◽  
Liquid Level Sensor

High sensitivity liquid level sensor based on a hollow core fiber structure

2021 ◽  
pp. 127279
Author(s):  
Lifeng Bao ◽  
Xinyong Dong ◽  
Perry Ping Shum ◽  
Changyu Shen
Keyword(s):  
High Sensitivity ◽  
Liquid Level ◽  
Hollow Core ◽  
Fiber Structure ◽  
Level Sensor ◽  
Core Fiber ◽  
Liquid Level Sensor

scholarly journals Dual Mach–Zehnder Interferometer Based on Side-Hole Fiber for High-Sensitivity Refractive Index Sensing

2019 ◽  
Vol 11 (6) ◽  
pp. 1-13 ◽  
Author(s):  
Jie Hu ◽  
Mateusz Smietana ◽  
Taihong Wang ◽  
Tingting Lang ◽  
Liyang Shao ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Sensitivity ◽  
Zehnder Interferometer ◽  
Side Hole ◽  
Refractive Index Sensing ◽  
Mach Zehnder Interferometer

Ultra-high sensitivity liquid level sensor based on CO2 laser local refractive index curved modulation effect

2019 ◽  
Vol 120 ◽  
pp. 105755 ◽  
Author(s):  
Yunshan Zhang ◽  
Yanxin Zhang ◽  
Weigang Zhang ◽  
Lei Chen ◽  
Lin Yu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Co2 Laser ◽  
High Sensitivity ◽  
Liquid Level ◽  
Modulation Effect ◽  
Level Sensor ◽  
Liquid Level Sensor ◽  
Local Refractive Index
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