TY - GEN
T1 - Ultrasensitive optical-fiber ultrasonic sensor based on phase-shifted fiber bragg gratings
AU - Wu, Q.
AU - Okabe, Y.
AU - Yu, F.
AU - Saito, K.
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - Using optical method in structural health monitoring (SHM) is getting more and more attentions recently due to the inherent advantages in fiber optical method. In this research, we proposed an ultrasonic phase-shifted fiber Bragg grating (PS-FBG) sensor and demonstrated its application to ultrasonic SHM. Based on this sensor, two different demodulation systems were developed, named as cascaded PS-FBG sensing system and PS-FBG balanced sensing system, for acousto-ultrasonic detection and acoustic emission detection. The experimental results show that PS-FBG sensor with higher sensitivity compared to other existent FBG has a potential to replace traditional ultrasonic lead-zirconate-titanate sensors.
AB - Using optical method in structural health monitoring (SHM) is getting more and more attentions recently due to the inherent advantages in fiber optical method. In this research, we proposed an ultrasonic phase-shifted fiber Bragg grating (PS-FBG) sensor and demonstrated its application to ultrasonic SHM. Based on this sensor, two different demodulation systems were developed, named as cascaded PS-FBG sensing system and PS-FBG balanced sensing system, for acousto-ultrasonic detection and acoustic emission detection. The experimental results show that PS-FBG sensor with higher sensitivity compared to other existent FBG has a potential to replace traditional ultrasonic lead-zirconate-titanate sensors.
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M3 - Conference contribution
AN - SCOPUS:84945188591
T3 - Structural Health Monitoring 2013: A Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013
SP - 2063
EP - 2070
BT - Structural Health Monitoring 2013
A2 - Chang, Fu-Kuo
PB - DEStech Publications
T2 - 9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013
Y2 - 10 September 2013 through 12 September 2013
ER -