Infrared thermography: nonplanar inspection

Jean-Francois Pelletier; Xavier P. Maldague

doi:10.1117/12.235384

15 March 1996 Infrared thermography: nonplanar inspection

Jean-Francois Pelletier, Xavier P. Maldague

Proceedings Volume 2766, Thermosense XVIII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications; (1996) https://doi.org/10.1117/12.235384
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

Nondestructive evaluation by active infrared thermography allows detection of subsurface defects. In some instances however, such defect detection is perturbed by the geometry of the object. Thermal variations caused by object shape alter significantly the detection's performance because it may become difficult to distinguish between a defect and a shape variation (especially if a single image is analyzed). This paper presents a method which allows, from a single infrared image acquired right after the pulse thermal stimulation, to evaluate the shape of a nonplanar object and then apply a correction on subsequent thermograms in the time sequence in order to increase the reliability of defect detection.

Citation Download Citation

Jean-Francois Pelletier and Xavier P. Maldague "Infrared thermography: nonplanar inspection", Proc. SPIE 2766, Thermosense XVIII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (15 March 1996); https://doi.org/10.1117/12.235384

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