Characterizing back surface loss of skin thickness and presence of corrosion by time-resolved infrared radiometry

Jane W. Maclachlan Spicer; W. D. Kerns; Robert Osiander; John C. Murphy

doi:10.1117/12.163836

3 December 1993 Characterizing back surface loss of skin thickness and presence of corrosion by time-resolved infrared radiometry

Jane W. Maclachlan Spicer, W. D. Kerns, Robert Osiander, John C. Murphy

Author Affiliations +

Proceedings Volume 2001, Nondestructive Inspection of Aging Aircraft; (1993) https://doi.org/10.1117/12.163836
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

This paper describes the use of time-resolved infrared radiometry (TRIR) to identify characteristic temperature-time signatures resulting from different subsurface thermal structures in aging aircraft. Central to the TRIR technique is the analysis of the temperature- time signatures at various locations as a step heating pulse is applied to the structure. Of particular interest is determining whether a signature can be identified which discriminates the presence of corrosion product from the simple thinning of the aircraft skin as might occur as a result of a previous repair. A technique is proposed which implements both area and localized heating sources. The area heating source provides one-dimensional heating of the specimen and allows suspect areas to be rapidly detected. A localized heating source is then used to further characterize the suspect regions.

Citation Download Citation

Jane W. Maclachlan Spicer, W. D. Kerns, Robert Osiander, and John C. Murphy "Characterizing back surface loss of skin thickness and presence of corrosion by time-resolved infrared radiometry", Proc. SPIE 2001, Nondestructive Inspection of Aging Aircraft, (3 December 1993); https://doi.org/10.1117/12.163836

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