Fiber-optic ultrasonic sensing systems using PS-FBG for damage monitoring in composite materials

Yoji Okabe; Qi Wu

doi:10.1117/12.2184405

1 July 2015 Fiber-optic ultrasonic sensing systems using PS-FBG for damage monitoring in composite materials

Yoji Okabe, Qi Wu

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96553T (2015) https://doi.org/10.1117/12.2184405
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

Fiber-optic ultrasonic sensing systems have been developed for structural health monitoring of composite structures by introduction of phase-shifted fiber Bragg gratings (PS-FBGs). The systems can achieve the compatibility of high sensitivity and broadband performance. First, PS-FBG balanced sensing system was developed and succeeded in detection of small acoustic emission signals of composite laminates. Next, erbium fiber ring laser sensing system with inbuilt PS-FBG was developed. This system has high robustness due to its self-adjustment function for environmental disturbances and achieved much higher sensitivity and ultra-broadband respondency than piezoelectric ceramic sensors. These systems have large potential to realize the ultrasonic SHM.

Citation Download Citation

Yoji Okabe and Qi Wu "Fiber-optic ultrasonic sensing systems using PS-FBG for damage monitoring in composite materials", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96553T (1 July 2015); https://doi.org/10.1117/12.2184405

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available