A Closed-Loop Interrogation Technique for Multi-Point Temperature Measurement Using Fiber Bragg Gratings

2014 ◽  
Vol 32 (5) ◽  
pp. 971-977 ◽  
Author(s):  
Felipe Walter Dafico Pfrimer ◽  
Marcela Koyama ◽  
Alex Dante ◽  
Elnatan Chagas Ferreira ◽  
Jose Antonio Siqueira Dias
Keyword(s):  
Temperature Measurement ◽  
Closed Loop ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Point Temperature ◽  
Interrogation Technique

scholarly journals Performance of etched silica FBG for simultaneous strain temperature measurement

2021 ◽  
Author(s):  
Koustav Dey ◽  
Ramesh Buddu ◽  
Sourabh Roy
Keyword(s):  
Temperature Measurement ◽  
Experimental Measurement ◽  
Bandpass Filter ◽  
Fiber Bragg Gratings ◽  
Strain Range ◽  
Single Mode ◽  
Bragg Gratings ◽  
Single Mode Fiber ◽  
Experimental Results ◽  
Interrogation Technique

Abstract In this article, we have extensively investigated the efficiency of etched silica-based fiber Bragg gratings (FBGs) for the experimental measurement of temperature and strain simultaneously. A single-multi-single mode fiber (SMS) combination is employed in the circuitry which acts as a bandpass filter for efficient interrogation technique. We recorded the sensitivity of 20.30 pm/°C and 2.89 pm/µɛ over the temperature and strain range of 25–225°C and 50-2050 µɛ, respectively. These data were recorded with the strain resolution of ± 10 µɛ whereas the resolution for the temperature is ± 0.50°C. The experimental results show the potentiality of the sensor for measuring the strain and temperature simultaneously with higher intrinsic sensitivity and resolution.

Novel interrogation technique for Tilted Fiber Bragg Gratings sensors based on single wavelength time delay measurements

2009 ◽  
Author(s):  
M. Pisco ◽  
A. Ricciardi ◽  
S. Campopiano ◽  
C. Caucheteur ◽  
P. Mégret ◽  
...  
Keyword(s):  
Time Delay ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Interrogation Technique

Dynamic Temperature Compensating Interrogation Technique for Strain Sensors With Tilted Fiber Bragg Gratings

2008 ◽  
Vol 20 (16) ◽  
pp. 1393-1395 ◽  
Author(s):  
Yinping Miao ◽  
Bo Liu ◽  
Weihua Zhang ◽  
Bo Dong ◽  
Haibin Zhou ◽  
...  
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Strain Sensors ◽  
Dynamic Temperature ◽  
Interrogation Technique

Enhanced spectral response of π-phase shifted fiber Bragg gratings in closed-loop configuration

2015 ◽  
Vol 40 (9) ◽  
pp. 2124 ◽  
Author(s):  
P. Malara ◽  
C. E. Campanella ◽  
F. De Leonardis ◽  
A. Giorgini ◽  
S. Avino ◽  
...  
Keyword(s):  
Closed Loop ◽  
Spectral Response ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings
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