High Resolution Liquid-Level Sensor Based on Fiber Bragg Gratings in Attenuation Fiber and Optical Low-Coherence Reflectometry

2006 ◽  
Author(s):  
Dragan Coric ◽  
Rodrigue Chatton ◽  
Hans G. Limberger ◽  
René P. Salathé
Keyword(s):  
High Resolution ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Liquid Level ◽  
Low Coherence ◽  
Level Sensor ◽  
Liquid Level Sensor ◽  
Optical Low Coherence Reflectometry

Liquid-level sensor based on chirped-fiber Bragg gratings

2013 ◽  
Vol 25 (11) ◽  
pp. 2869-2872
Author(s):  
杨淑连 Yang Shulian ◽  
盛翠霞 Sheng Cuixia ◽  
魏芹芹 Wei Qinqin ◽  
何建廷 He Jianting ◽  
宿元斌 Su Yuanbin ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Liquid Level ◽  
Level Sensor ◽  
Liquid Level Sensor ◽  
Chirped Fiber Bragg Gratings

Characterization of Fiber Bragg Gratings by Phase-Sensitive Optical Low-Coherence Reflectometry

2006 ◽  
Vol 55 (5) ◽  
pp. 1696-1703 ◽  
Author(s):  
A.-F. Obaton ◽  
C. Palavicini ◽  
Y. Jaouenjaouen ◽  
E. Kerrinckx ◽  
Y. Quiquempois ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Low Coherence ◽  
Phase Sensitive ◽  
Optical Low Coherence Reflectometry

Optical low-coherence reflectometry for a distributed sensor array of fiber Bragg gratings

2008 ◽  
Vol 144 (1) ◽  
pp. 64-68 ◽  
Author(s):  
Weisheng Liu ◽  
Zu-Guang Guan ◽  
Guorong Liu ◽  
Chunsheng Yan ◽  
Sailing He
Keyword(s):  
Sensor Array ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Distributed Sensor ◽  
Low Coherence ◽  
Optical Low Coherence Reflectometry

Experimental synthesis of fiber Bragg gratings using optical low coherence reflectometry

2003 ◽  
Vol 82 (24) ◽  
pp. 4227-4229 ◽  
Author(s):  
Xavier Chapeleau ◽  
Dominique Leduc ◽  
Cyril Lupi ◽  
Roger Le Ny ◽  
Marc Douay ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Low Coherence ◽  
Optical Low Coherence Reflectometry

scholarly journals Liquid level sensor based on dynamic Fabry–Perot interferometers in processed capillary fiber

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pablo Roldán-Varona ◽  
Rosa Ana Pérez-Herrera ◽  
Luis Rodríguez-Cobo ◽  
Luis Reyes-González ◽  
Manuel López-Amo ◽  
...  
Keyword(s):  
Optical Fiber Sensor ◽  
Liquid Level ◽  
Hollow Core ◽  
Immiscible Liquids ◽  
Fabry Perot ◽  
Detection Mode ◽  
Level Sensor ◽  
Core Fiber ◽  
Liquid Level Sensor ◽  
Silica Capillary

AbstractIn this work, a novel optical fiber sensor capable of measuring both the liquid level and its refractive index is designed, manufactured and demonstrated through simulations and experimentally. For this, a silica capillary hollow-core fiber is used. The fiber, with a sensing length of 1.55 mm, has been processed with a femtosecond laser, so that it incorporates four holes in its structure. In this way, the liquid enters the air core, and it is possible to perform the sensing through the Fabry–Perot cavities that the liquid generates. The detection mode is in reflection. With a resolution of 4 μm (liquid level), it is in the state of the art of this type of sensor. The system is designed so that in the future it will be capable of measuring the level of immiscible liquids, that is, liquids that form stratified layers. It can be useful to determine the presence of impurities in tanks.

scholarly journals Light Path Model of Fiber Optic Liquid Level Sensor Considering Residual Liquid Film on the Wall

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Zhijun Zhang ◽  
Shiwei Zhang
Keyword(s):  
Liquid Film ◽  
Fiber Optic ◽  
Glass Tube ◽  
Path Model ◽  
Liquid Level ◽  
Residual Liquid ◽  
Light Refraction ◽  
Special Cases ◽  
Level Sensor ◽  
Liquid Level Sensor

The working principle of the refractive-type fiber optic liquid level sensor is analyzed in detail based on the light refraction principle. The optic path models are developed in consideration of common simplification and the residual liquid film on the glass tube wall. The calculating formulae for the model are derived, constraint conditions are obtained, influencing factors are discussed, and the scopes and skills of application are analyzed through instance simulations. The research results are useful in directing the correct usage of the fiber optic liquid level sensor, especially in special cases, such as those involving viscous liquid in the glass tube monitoring.

scholarly journals A plastic fiber optic liquid level sensor

2004 ◽  
Author(s):  
S. Vargas ◽  
Carmen Vazquez ◽  
Ana B. Gonzalo ◽  
Jose M. Pena
Keyword(s):  
Fiber Optic ◽  
Liquid Level ◽  
Level Sensor ◽  
Liquid Level Sensor
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