High-sensitivity structure based on fiber Bragg grating sensor and its application in nonintrusive detection of pipeline pressure change

Measurement ◽  
2021 ◽  
pp. 110444
Author(s):  
Qiming Shu ◽  
Lei Wu ◽  
Shunzhi Lu ◽  
Wensheng Xiao
Keyword(s):  
Fiber Bragg Grating ◽  
High Sensitivity ◽  
Pressure Change ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Bragg Grating Sensor ◽  
Pipeline Pressure

Four years of soil strain monitoring on Etna Volcano Mount by means of a Three-axial Fiber Bragg Grating Sensor

2020 ◽  
Author(s):  
Umberto Giacomelli ◽  
Enrico Maccioni ◽  
Giorgio Carelli ◽  
Daniele Carbone ◽  
Salvatore Gambino ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
High Performance ◽  
Low Cost ◽  
High Sensitivity ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Strain Behavior ◽  
Strain Monitoring ◽  
Soil Strain ◽  
Bragg Grating Sensor

<p>Rock strains detection is one of the principal ways to monitor geohazards. Classic strainmeters are cumbersome, hard to install and very expensive. Opto-electronics devices based on fiber Bragg grating technology allow to realize strainmeters with high sensitivity, low-cost, small volume and high performance.<br>We present the long term result of continuous soil strain monitoring on the Etna mount by a three-axial fiber Bragg grating sensor. The sensor has been developed in the framework of European Project MED-SUV (MEDiterranean SUpersite Volcanos). The installation site is a 8.5 meters deep borehole at a distance of about 7 km South-West from the summit craters of the Etna mount, at an elevation of about 1740 meters. This kind of sensor has a resolution better than 100 nanostrains on a daily timescale. Despite it is only a prototype, the sensor has worked for four years with a duty-cycle higher than 90% detecting both fast event, as earthquakes, and slow event, as epochal rocks strain behavior.</p>

High sensitivity evanescent field fiber Bragg grating sensor

2005 ◽  
Vol 17 (6) ◽  
pp. 1253-1255 ◽  
Author(s):  
A.N. Chryssis ◽  
S.M. Lee ◽  
S.B. Lee ◽  
S.S. Saini ◽  
M. Dagenais
Keyword(s):  
Fiber Bragg Grating ◽  
High Sensitivity ◽  
Evanescent Field ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Bragg Grating Sensor

CCD fiber Bragg grating sensor demodulation system based on FPGA

2010 ◽  
Author(s):  
Q. Zhou ◽  
T. G. Ning ◽  
L. Pei ◽  
J. Li ◽  
X. D. Wen ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Bragg Grating Sensor

Integrated Fabry-Perot/Fiber Bragg Grating Sensor for Simultaneous Measurement

CLEO: 2015 ◽  
2015 ◽  
Author(s):  
Fahad M. Abdulhussein ◽  
Maoxiang Hou ◽  
Shuhui Liu ◽  
Tahreer S. Mansour ◽  
Peixiang Lu
Keyword(s):  
Fiber Bragg Grating ◽  
Simultaneous Measurement ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Fabry Perot ◽  
Bragg Grating Sensor
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