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ABSTRACT
The technologies of thermal imaging cameras are based on quantum or thermal sensor arrays. The cameras are characterized in the fields of thermal imaging and thermographic measurement. The technological evolution from mechanical scanning devices, as well as the progress to be made, are explained. Thermography has developed in every application of thermics, research and development, maintenance, prevention and the construction sector in 2005. Its development is slower in the control of products and processes and in non-destructive control (NDC).
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Read the articleAUTHORS
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Dominique PAJANI: Engineer, École Centrale de Lyon - President of the Institut de la Thermographie association - Expert to the Versailles Court of Appeal
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Luc AUDAIRE: Doctoral engineer - Microelectronic engineer at the Infrared Laboratory - Optronics Department CEA Grenoble/DTA/LETI - Article updated by Dominique PAJANI
INTRODUCTION
This article follows on from the first article on the principles and measurements of thermography
In this second article, we'll take a broad look at detectors and sensors, while remaining focused on measurement thermography.
We'll structure the characteristics of the thermal camera in two areas, distinguishing between the two main technological families. We'll look at instrumental optics, analog instrumentation electronics and digital electronics. Finally, the camera will be placed in a thermography system.
The article continues with a discussion of thermography applications and the uses of thermal imaging cameras.
Readers will find information on standards and bibliography in "For further information".
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KEYWORDS
infrared | application | Thermal camera | | | measurement |
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Non-destructive testing
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Thermography
Detector, sensor, camera and system
Bibliography
Detectors, sensors
Standardization
Standards provide a clear language, even if it can't be exhaustive. We have given a view of French thermography standards and their limitations.
- International Vocabulary of Metrology. Fundamental and general concepts and associated terms. 91 p. Downloadable from http://www.bipm.org. - JCGM 200:2012 VIM - 2012
- Thermographie...
Association Française de Normalisation AFNOR
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measuring physical quantities ;
radiation ;
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The thermography "profession" includes operators, integrators/application developers, constructors (manufacturers and resellers), consultants, trainers, characterization laboratories, service providers and institutions (authors, associations, congresses, press, standardization, etc.).
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