FBG sensors for structural health monitoring

Kuo-Chun Chang; Tzu-Kang Lin; Yung-Bin Lin; Long Wang

doi:10.1117/12.434198

24 July 2001 FBG sensors for structural health monitoring

Kuo-Chun Chang, Tzu-Kang Lin, Yung-Bin Lin, Long Wang

Proceedings Volume 4335, Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring; (2001) https://doi.org/10.1117/12.434198
Event: 6th Annual International Symposium on NDE for Health Monitoring and Diagnostics, 2001, Newport Beach, CA, United States

Abstract

Two homemade FBG (Fiber Brag Grating) sensors were installed on specific locations of a small-scale three-story structure model. The model was excited by various kinds of vibrations and the dynamic strain data were measured. In order to make a full comparison, the traditional RSG sensors were also installed on the same location of the FBG sensors. The accelerometers and LVDTíªs were also used to offer detailed dynamic information about the structure. Analysis on the test results showed good agreements between the FBG and the RSG sensors and the advantages of using FBG sensors. The fundamental frequency of the structure was also obtained from analyzing the measured data. The result shows that the FBG sensors can be a good alternative for the RSG sensors in monitoring the structure behavior. In addition, experimental study of plates with cracks was carried out using the FBG sensors. Four homemade FBG (Fiber Brag Grating) sensors were installed on specific locations of an aluminum plate. Four traditional RSG sensors were also installed on the same location of the FBG sensors. Test results shows that the FBG sensors can be used to locate the position of cracks. This study shows that the FBG sensors are very good candidates in structural health monitoring and could be widely used in the near future.

Citation Download Citation

Kuo-Chun Chang, Tzu-Kang Lin, Yung-Bin Lin, and Long Wang "FBG sensors for structural health monitoring", Proc. SPIE 4335, Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring, (24 July 2001); https://doi.org/10.1117/12.434198

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