A novel liquid level monitoring sensor system using a fiber bragg grating

2013 ◽  
Author(s):  
Lingtao Meng ◽  
Yunqi Liu ◽  
Tingyun Wang
Keyword(s):  
Fiber Bragg Grating ◽  
Sensor System ◽  
Liquid Level ◽  
Bragg Grating ◽  
Level Monitoring

Design of a Sensor System Using Fiber Bragg Grating for Liquid Level and Liquid Density Measurement

2020 ◽  
Vol 18 (12) ◽  
pp. 889-893
Author(s):  
Kalyan Biswas
Keyword(s):  
Fiber Bragg Grating ◽  
Density Measurement ◽  
Sensor System ◽  
Liquid Level ◽  
Bragg Grating ◽  
Liquid Density ◽  
Bragg Wavelength ◽  
Sensing System ◽  
System A ◽  
Level Monitoring

In this work, a simple but versatile sensing system for very accurate sensing of liquid level and liquid density is presented. The sensor works based on basic strain sensitivity of Fiber Bragg Grating (FBG) and principle of liquid obeying Archimedes’ law of buoyancy. In this system, a cylindrical shaped mass suspended from a Fiber Bragg Grating and partially immersed in the liquid to be sensed. If the liquid level in the container or liquid density varies, that change the up thrust on the suspended mass and load on the Fiber will be changed accordingly. The change in the load on Fiber changes strain on the FBG and the reflected Bragg wavelength also changes. The proposed device with proper calibration should be able to carry out real time and nonstop liquid level and liquid density measurements. A mathematical analysis of the system considering liquid properties and geometrical structure of the suspended mass is presented here. Sensitivity of the system for liquid level monitoring is also reported. Achieved results shows the path for the utilization of the proposed sensor system for precise liquid density measurement and liquid level sensing in very large storage tanks used for commercial/residential applications.

Dynamic assessment of women pelvic floor function by using a fiber Bragg grating sensor system

2006 ◽  
Author(s):  
Luis A. Ferreira ◽  
Francisco M. Araújo ◽  
Teresa Mascarenhas ◽  
Renato M. Natal Jorge ◽  
António A. Fernandes
Keyword(s):  
Pelvic Floor ◽  
Fiber Bragg Grating ◽  
Dynamic Assessment ◽  
Fiber Bragg Grating Sensor ◽  
Sensor System ◽  
Bragg Grating ◽  
Pelvic Floor Function ◽  
Floor Function ◽  
Bragg Grating Sensor

Improved Accuracy of a Quasi-distributed Strain Sensor System by Using Fiber Bragg Grating Spectrum Restoration

2011 ◽  
Vol 61 (8) ◽  
pp. 750-754
Author(s):  
Gyoung-A KIM ◽  
 Jae-Soon YOON ◽  
Se-Jong BAIK ◽  
Kiegon IM*
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Sensor ◽  
Sensor System ◽  
Bragg Grating ◽  
Improved Accuracy ◽  
Distributed Strain
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