A Liquid-Level Sensor Based on a Hollow Coaxial Cable Fabry–Perot Resonator With Micrometer Resolution

2018 ◽  
Vol 67 (12) ◽  
pp. 2892-2897 ◽  
Author(s):  
Chen Zhu ◽  
Yiyang Zhuang ◽  
Yizheng Chen ◽  
Jie Huang
Keyword(s):  
Coaxial Cable ◽  
Liquid Level ◽  
Fabry Perot ◽  
Level Sensor ◽  
Liquid Level Sensor

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 Design and Implementation of an Intrinsically Safe Liquid-Level Sensor Using Coaxial Cable

Sensors ◽  
2015 ◽  
Vol 15 (6) ◽  
pp. 12613-12634 ◽  
Author(s):  
Baoquan Jin ◽  
Xin Liu ◽  
Qing Bai ◽  
Dong Wang ◽  
Yu Wang
Keyword(s):  
Coaxial Cable ◽  
Liquid Level ◽  
Design And Implementation ◽  
Level Sensor ◽  
Liquid Level Sensor

Extrinsic Fabry-Perot cavity optical fiber liquid-level sensor

2007 ◽  
Vol 46 (18) ◽  
pp. 3682 ◽  
Author(s):  
Tao Lü ◽  
Suping Yang
Keyword(s):  
Optical Fiber ◽  
Liquid Level ◽  
Fabry Perot ◽  
Level Sensor ◽  
Liquid Level Sensor

Liquid Level Sensor Based on the Coaxial Cable Capacitance Mechanism

2013 ◽  
Vol 11 (11) ◽  
pp. 2105-2109 ◽  
Author(s):  
Baoquan Jin ◽  
Xin Liu ◽  
Hongjuan Zhang
Keyword(s):  
Coaxial Cable ◽  
Liquid Level ◽  
Level Sensor ◽  
Liquid Level Sensor
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