TY - GEN
T1 - Investigation of positioning of FBG sensors for smart monitoring of oil and gas subsea structures
AU - Johny, Jincy
AU - Prabhu, Radhakrishna
AU - Fung, Wai Keung
AU - Watson, John
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/6/3
Y1 - 2016/6/3
N2 - Condition monitoring of offshore structures is an indispensable task in the oil and gas industry. Fibre Bragg Grating (FBG) is the key technology used down-hole in order to sense different physical parameters such as strain, vibration, etc. This paper investigates the effect of FBG sensor positions on its reflected signal, in order to optimise the sensor positioning plan in structural health monitoring of subsea structures. Theoretical and experimental study was carried out on FBG sensors, to evaluate its strain sensitivities with varying positions. In addition, micro-displacement based strain analysis of FBG was carried out using a cantilever setup, in order to identify the effects of tensile and compressive strain under various load conditions. Furthermore, the effect of different grating parameters on FBG sensing signal were also analyzed. Theoretical modeling and simulation of FBG was conducted in MATLAB using the coupled mode theory.
AB - Condition monitoring of offshore structures is an indispensable task in the oil and gas industry. Fibre Bragg Grating (FBG) is the key technology used down-hole in order to sense different physical parameters such as strain, vibration, etc. This paper investigates the effect of FBG sensor positions on its reflected signal, in order to optimise the sensor positioning plan in structural health monitoring of subsea structures. Theoretical and experimental study was carried out on FBG sensors, to evaluate its strain sensitivities with varying positions. In addition, micro-displacement based strain analysis of FBG was carried out using a cantilever setup, in order to identify the effects of tensile and compressive strain under various load conditions. Furthermore, the effect of different grating parameters on FBG sensing signal were also analyzed. Theoretical modeling and simulation of FBG was conducted in MATLAB using the coupled mode theory.
KW - FBG
KW - coupled mode theory
KW - fibre optic sensors
KW - structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=84978196317&partnerID=8YFLogxK
U2 - 10.1109/OCEANSAP.2016.7485662
DO - 10.1109/OCEANSAP.2016.7485662
M3 - Conference contribution
AN - SCOPUS:84978196317
T3 - OCEANS 2016 - Shanghai
BT - OCEANS 2016 - Shanghai
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - OCEANS 2016 - Shanghai
Y2 - 10 April 2016 through 13 April 2016
ER -