The technology is suitable to measure the thickness of complex stacks of paints (electro coat, primer, base coat and clear coat) on both metallic panel or carbon fibre panel. We were able to demonstrate that the technique is able to quantitatively resolve the thickness of thin layers of less than 30 μm thickness and that these measurements can be made for metallic, pearlescent and normal base coats alike.
K. Su, Y.C. Shen, and J.A. Zeitler, Terahertz sensor for non-contact thickness and quality measurement of automobile paints of varying complexity, IEEE Transactions of Terahertz Science and Technology,10.1109/TTHZ.2014.2325393, (2014)
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This research is part of a collaboration with TeraView Ltd and Aston-Martin Lagonda and co-funded by the UK’s innovation agency, the Technology Strategy Board (Award 101262). This work was also supported by the UK Engineering and Physical Sciences Research Council (EP/K503721/1).