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Open AccessFeature PaperArticle

Optimisation of a Heat Source for Infrared Thermography Measurements: Comparison to Mehler Engineering + Service-Heater

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Op3Mech Research Group, Faculty of Applied Engineering, University of Antwerp, 2020 Antwerp, Belgium
2
Computer Vision and Systems Laboratory, Department of Electrical and Computer Engineering, Université Laval, Quebec City, QC G1V 0A6, Canada
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(4), 1285; https://doi.org/10.3390/app10041285
Received: 31 December 2019 / Revised: 31 January 2020 / Accepted: 5 February 2020 / Published: 14 February 2020
(This article belongs to the Special Issue Structural Health Monitoring & Nondestructive Testing 2020)
Using an optimised heating source in active thermography can facilitate the processing of measurement results. By designing a custom heat source for dynamic line scan thermography, we reduced the excitation power needed to heat the sample and decreased the unwanted side effects originating of a wide-range heating source. The design started from a regular halogen tube lamp and a reflector is composed to provide the desired heating power in a narrow band. The reflector shape is optimised using ray-tracing software to concentrate the electromagnetic radiation along with the heat in a slim line. A comparison between the optimised heat source and a commercially available line-heater is performed. The width of the heated region from the Mehler Engineering + Service-heater is larger than prescribed in the datasheet. The optimised line heater has several advantages over the comercially available heat source. View Full-Text
Keywords: infrared thermography; heating source; optimisation; simulation; reflector infrared thermography; heating source; optimisation; simulation; reflector
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Verspeek, S.; Ribbens, B.; Maldague, X.; Steenackers, G. Optimisation of a Heat Source for Infrared Thermography Measurements: Comparison to Mehler Engineering + Service-Heater. Appl. Sci. 2020, 10, 1285.

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