
Proceedings Paper
Integrating monitoring and inspection with attached ultrasonic transducersFormat | Member Price | Non-Member Price |
---|---|---|
$17.00 | $21.00 |
Paper Abstract
Ultrasonic methods are widely applied for nondestructive evaluation of structural components during both the
manufacturing process and subsequent field inspections. The field inspections often require expensive teardown in order
to access the back surfaces of critical components. Active ultrasonic methods are also a subject of ongoing research for
structural health monitoring whereby transducers are permanently attached to a structure and signals are monitored to
detect changes caused by structural damage. This paper presents a methodology for effectively combining ultrasonic
monitoring and inspection. During the monitoring phase, detection and localization of possible damage is demonstrated
on several specimens using attached transducers. This detection phase is followed by demonstration of a new inspection
method referred to as Acoustic Wavefield Imaging (AWI) which utilizes the attached transducers as sources and a single
externally scanned air-coupled transducer as a receiver. The acoustic wavefield images are useful for both checking the
viability of the attached transducers and quantifying the extent of damage. The AWI method approaches the sensitivity
of conventional through transmission ultrasonic methods but does not require access to both sides of structural
components. Thus, it is very well suited for rapid field inspection of structural assemblies.
Paper Details
Date Published: 15 March 2006
PDF: 12 pages
Proc. SPIE 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V, 61770E (15 March 2006); doi: 10.1117/12.658857
Published in SPIE Proceedings Vol. 6177:
Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V
Tribikram Kundu, Editor(s)
PDF: 12 pages
Proc. SPIE 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V, 61770E (15 March 2006); doi: 10.1117/12.658857
Show Author Affiliations
Thomas E. Michaels, Georgia Institute of Technology (United States)
Jennifer E. Michaels, Georgia Institute of Technology (United States)
Published in SPIE Proceedings Vol. 6177:
Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V
Tribikram Kundu, Editor(s)
© SPIE. Terms of Use
