Power-Type Liquid-Level Sensor for High Refractive Index Liquid Based on Long-Period Fiber Grating

2021 ◽  
pp. 112652
Author(s):  
Ming Zhang ◽  
Zhangjun Hu ◽  
Xiao Wang ◽  
Linlin Xue ◽  
Jun Zou ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Refractive Index ◽  
Liquid Level ◽  
Fiber Grating ◽  
Power Type ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Level Sensor ◽  
Period Fiber Grating ◽  
Liquid Level Sensor

scholarly journals Ultrasensitive liquid level sensor based on slice-shaped composite long period fiber grating

2022 ◽  
Vol 20 (1) ◽  
pp. 011202
Author(s):  
Xiren Jin ◽  
Zeju Rui ◽  
Zihang Xiang ◽  
Chupeng Lu ◽  
Shuo Zhang ◽  
...  
Keyword(s):  
Liquid Level ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Level Sensor ◽  
Period Fiber Grating ◽  
Liquid Level Sensor

Liquid-Level Sensor Using Reflective Long-Period Fiber Grating

2011 ◽  
Vol 71-78 ◽  
pp. 4407-4410 ◽  
Author(s):  
Jian Neng Wang ◽  
Jaw Luen Tang ◽  
Chen Han Jan ◽  
Wei Te Wu ◽  
Chien Hsing Chen ◽  
...  
Keyword(s):  
Arc Discharge ◽  
Liquid Level ◽  
Fiber Grating ◽  
Long Period Fiber Grating ◽  
Long Period ◽  
Level Sensor ◽  
In Series ◽  
Period Fiber Grating ◽  
Experimental Findings ◽  
Liquid Level Sensor

This paper presents the development and assessment of a liquid-level sensor using reflective long-period fiber grating (LPFG) technology. The LPFG was fabricated by the electrical arc discharge method and the liquid-level sensor consisted of five LPFGs in series with a reflective mirror (end) coated with silver by Tollen’s test. The experimental findings showed the sensor could be used to automatically monitor five liquid levels, such as 20, 40, 60, 80, and 100 cm. The sensing system had at least 100-cm liquid-level measurement capacity. The reflective LPFGs-in-series sensor was able to successfully yield a comparable liquid-level sensing performance and hopefully could be used in the fields of civil and agronomy engineering applications such as pipes, channels, dams, and deep-ponding paddy fields.

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