Ultrasensitive optical-fiber ultrasonic sensor based on phase-shifted fiber bragg gratings

Q. Wu, Y. Okabe, F. Yu, K. Saito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationStructural Health Monitoring 2013
Subtitle of host publicationA Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013
EditorsFu-Kuo Chang
PublisherDEStech Publications
Pages2063-2070
Number of pages8
ISBN (Electronic)9781605951157
Publication statusPublished - 2013
Externally publishedYes
Event9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013 - Stanford, United States
Duration: Sep 10 2013Sep 12 2013

Publication series

NameStructural Health Monitoring 2013: A Roadmap to Intelligent Structures - Proceedings of the 9th International Workshop on Structural Health Monitoring, IWSHM 2013
Volume2

Conference

Conference9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013
CountryUnited States
CityStanford
Period9/10/139/12/13

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Health Information Management

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