Abstract
A state-of-the-art thermographic system has been developed based on a 512×512 focal-plane array thermal imager. The system, dubbed FAST (for focal-plane array for synchronous thermography) is able to deliver high-resolution full-field thermoelastic stress scans in minutes rather than hours. The paper itemizes the hardware components together with their functions.
The digital signal processing required is described in detail as well as some of the problems encountered and how they were solved. Finally a thermoelastic image is displayed illustrating the capability of this system.
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Permission is granted toExperimental Mechanics to publish the paper on a nonexclusive one-time basis in the journal. This agreement is subject to the Commonwealth of Australia retaining Copyright of the paper, the author and source of the paper has been acknowledged. No meaningful changes have been made to the paper without the prior consent of the author.
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Ryall, T.G., Wong, A.K. Design of a focal-plane array thermographic system for stress analysis. Experimental Mechanics 35, 144–147 (1995). https://doi.org/10.1007/BF02326472
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DOI: https://doi.org/10.1007/BF02326472