Integrated surface and plate acoustic wave sensors for health monitoring

C.-K. Jen; K.-T. Wu; M. Kobayashi; J.-H. Kuo; N. Mrad

doi:10.1117/12.715290

11 April 2007 Integrated surface and plate acoustic wave sensors for health monitoring

C.-K. Jen, K.-T. Wu, M. Kobayashi, J.-H. Kuo, N. Mrad

Proceedings Volume 6532, Health Monitoring of Structural and Biological Systems 2007; 653206 (2007) https://doi.org/10.1117/12.715290
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

Piezoelectric films sprayed onto metal substrates together with interdigital transducer electrodes form the integrated Rayleigh surface acoustic wave (RAW) transducers to excite and detect RAW. Using integrated longitudinal (L) wave ultrasonic transducers (UTs) and mode conversion from L waves to shear waves symmetrical, anti-symmetrical and shear horizontal types of guided plate acoustic waves have been generated and received in aluminum alloy plates. These transducers can be operated in pulse-echo mode for in-situ non-destructive testing (NDT) and/or health monitoring purposes in a distance of hundreds of mini-meters at 150°C. Examples of using such waves for NDT of defects are also demonstrated.

Citation Download Citation

C.-K. Jen, K.-T. Wu, M. Kobayashi, J.-H. Kuo, and N. Mrad "Integrated surface and plate acoustic wave sensors for health monitoring", Proc. SPIE 6532, Health Monitoring of Structural and Biological Systems 2007, 653206 (11 April 2007); https://doi.org/10.1117/12.715290

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