Bend sensing in structures using long-period optical fiber gratings

Chen-Chun Ye; Cathy Y. Wei; S. Khaliq; Stephen W. James; P. E. Irving; Ralph P. Tatam

doi:10.1117/12.396412

24 August 2000 Bend sensing in structures using long-period optical fiber gratings

Chen-Chun Ye, Cathy Y. Wei, S. Khaliq, Stephen W. James, P. E. Irving, Ralph P. Tatam

Proceedings Volume 4073, Fifth European Conference on Smart Structures and Materials; (2000) https://doi.org/10.1117/12.396412
Event: Symposium on Applied Photonics, 2000, Glasgow, United Kingdom

Abstract

When a long-period fibre grating (LPG) is bent, each resonant attenuation band of the transmission spectrum is observed to split into two. The wavelength separation of the split attenuation bands increases significantly with increasing bend curvature. Based on the recent observation of this novel effect¹, a high sensitivity structural bend sensor has been developed. The LPGs were bonded to the surface of a steel plate using an unsaturated polyester adhesive, and their bend sensing characteristics examined. Pairs of concave and convex testing jigs with a bending curvature ranging from 0.1 to 2m¹ were used to apply accurate bending curvature to the steel plate. The LPGs responses to bending in air and in the polyester adhesive are compared.

Citation Download Citation

Chen-Chun Ye, Cathy Y. Wei, S. Khaliq, Stephen W. James, P. E. Irving, and Ralph P. Tatam "Bend sensing in structures using long-period optical fiber gratings", Proc. SPIE 4073, Fifth European Conference on Smart Structures and Materials, (24 August 2000); https://doi.org/10.1117/12.396412

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