Numerical System For Infrared Scanners And Application To The Subsurface Control Of Materials By Photothermal Radiometry

Jean Louis Beaudoin; Etienne Merienne; Raphael Danjoux; Michel Egee

doi:10.1117/12.951996

1 May 1986 Numerical System For Infrared Scanners And Application To The Subsurface Control Of Materials By Photothermal Radiometry

Jean Louis Beaudoin, Etienne Merienne, Raphael Danjoux, Michel Egee

Author Affiliations +

Proceedings Volume 0590, Infrared Technology and Applications; (1986) https://doi.org/10.1117/12.951996
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

Non-destructive testing (NDT) of materials can be achieved via proper photonic excitation and radiometric monitoring of the induced thermal changes. The theoretical support for this photothermal conversion in bi-layered materials is proposed, single-pulse and periodically modulated fluxes being considered. Some practical proposals are derived concerning the various aims of NDT: coatings thickness measurements, detection of defective bondings or delaminations, measurements of contact resistances between two layers. Measurements performed with a commercially available infra-red scanner and a digital data acquisition and processing system are reported.

Citation Download Citation

Jean Louis Beaudoin, Etienne Merienne, Raphael Danjoux, and Michel Egee "Numerical System For Infrared Scanners And Application To The Subsurface Control Of Materials By Photothermal Radiometry", Proc. SPIE 0590, Infrared Technology and Applications, (1 May 1986); https://doi.org/10.1117/12.951996

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