DaimlerChrysler is testing a laser paint-testing technology, developed by Plymouth, MI-based Perceptron, that sends consecutive infrared pulses on a coat of wet paint. Each pulse creates an ultrasonic ‘ring’ — higher pitched when scanning thinner surface areas; lower across thicker surfaces. Since the paint is still wet, thickness consistency — which is crucial in avoiding rust and flaking — can be determined more quickly than with conventional hand-held thickness meters. The net result ...

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