Study of a liquid level sensor based on a tilted long period grating imprinted on a plastic optical fiber

2021 ◽  
Author(s):  
Haiyang Bao ◽  
Bingcheng Wu ◽  
Yuan Liu ◽  
Yanfei Zhou ◽  
Jie Zheng
Keyword(s):  
Optical Fiber ◽  
Liquid Level ◽  
Plastic Optical Fiber ◽  
Long Period Grating ◽  
Long Period ◽  
Level Sensor ◽  
Liquid Level Sensor

Low-Cost Multipoint Liquid-Level Sensor With Plastic Optical Fiber

2014 ◽  
Vol 26 (16) ◽  
pp. 1613-1616 ◽  
Author(s):  
Xiao Lin ◽  
Yulin Li ◽  
Liyong Ren ◽  
Yiping Xu ◽  
Nana Chen ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Low Cost ◽  
Liquid Level ◽  
Plastic Optical Fiber ◽  
Level Sensor ◽  
Liquid Level Sensor

Liquid level measurement based on multi-S-bend plastic optical fiber

Sensor Review ◽  
2019 ◽  
Vol 39 (4) ◽  
pp. 522-524 ◽  
Author(s):  
Ning Jing
Keyword(s):  
Optical Fiber ◽  
Measurement Range ◽  
Propagation Loss ◽  
Liquid Level ◽  
Plastic Optical Fiber ◽  
Content Type ◽  
Level Measurement ◽  
Level Sensor ◽  
Liquid Sensing ◽  
Liquid Level Sensor

Purpose This paper aims to propose a liquid level sensor with a multi-S-bend plastic optical fiber. Design/methodology/approach The principle of liquid sensing used is based on the leakage of higher modes out of the fiber and repeated regeneration in the following bend sections. Therefore, a propagation loss was introduced in every bend section of the fiber with the loss depending on the refractive index of the environment. Findings Therefore, a continue shift in the liquid level can be detected by observing changes in the propagation loss of the fiber. The sensor features compactness and a flexible resolution. Originality/value Compared with the exited ones, the sensor has capability of continue liquid measurement and a greater measurement range.

Plastic optical fiber multipoint liquid-level sensor with single semi-cylindrical detection element

2010 ◽  
Author(s):  
Sergei Khotiaintsev ◽  
Selene Pérez-García ◽  
Alfredo Beltrán-Hernández ◽  
Enrique Llanito-Caudillo
Keyword(s):  
Optical Fiber ◽  
Liquid Level ◽  
Plastic Optical Fiber ◽  
Level Sensor ◽  
Liquid Level Sensor

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.

Liquid-Level Sensor Based on Reflective Mechanically Induced Long-Period Grating Using Double-Cladding Fiber

2018 ◽  
Vol 18 (23) ◽  
pp. 9568-9575 ◽  
Author(s):  
Ming Zhang ◽  
Runze Yu ◽  
Ying Du ◽  
Jun Zou ◽  
Liqiang Wang
Keyword(s):  
Liquid Level ◽  
Long Period Grating ◽  
Long Period ◽  
Level Sensor ◽  
Liquid Level Sensor

scholarly journals Continuous Liquid-Level Sensor Based on a Long-Period Grating and Microwave Photonics Filtering Techniques

2016 ◽  
Vol 16 (6) ◽  
pp. 1652-1658 ◽  
Author(s):  
Amelia Lavinia Ricchiuti ◽  
David Barrera ◽  
Aitor Urrutia ◽  
Javier Goicoechea ◽  
Francisco J. Arregui ◽  
...  
Keyword(s):  
Microwave Photonics ◽  
Liquid Level ◽  
Long Period Grating ◽  
Long Period ◽  
Level Sensor ◽  
Liquid Level Sensor ◽  
Filtering Techniques

Investigation of long period grating imprinted on a plastic optical fiber for liquid level sensing

Optik ◽  
2021 ◽  
pp. 168367
Author(s):  
Haiyang Bao ◽  
Bingcheng Wu ◽  
Yuan Liu ◽  
Yanfei Zhou ◽  
Jie Zheng
Keyword(s):  
Optical Fiber ◽  
Liquid Level ◽  
Plastic Optical Fiber ◽  
Long Period Grating ◽  
Long Period

Fiber-optic liquid-level sensor using a long-period grating

2001 ◽  
Vol 26 (16) ◽  
pp. 1224 ◽  
Author(s):  
Sarfraz Khaliq ◽  
Stephen W. James ◽  
Ralph P. Tatam
Keyword(s):  
Fiber Optic ◽  
Liquid Level ◽  
Long Period Grating ◽  
Long Period ◽  
Level Sensor ◽  
Liquid Level Sensor
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