To avoid rust or flaking, the paint on a car must have a thickness consistent to within a fraction of a millimeter. Auto makers test thickness by picking a sample car, waiting until it’s dry, and hitting it with an ultrasonic pulse from a handheld meter. But that process is slow and expensive-and now its days may be numbered. DaimlerChrysler is testing a laser inspection technology that works on wet paint. Designed by Plymouth, Mich.-based Perceptron, the system spits out several hundred laser pulses one after the other. Each infrared burst produces an ultrasonic “ring” that is higher in pitch where the paint is thinner. One big advantage of this system is that the line can be stopped and a problem fixed before a hundred or more mis-painted cars have gone through drying ovens. The National Institute of Standards and Technology, which funded Perceptron’s development work, estimates that the system could shave $50 off the cost of painting each car, saving the Big Three automakers hundreds of millions of dollars a year.
Five poems about the mind
Work reinvented: Tech will drive the office evolution
As organizations navigate a new world of hybrid work, tech innovation will be crucial for employee connection and collaboration.
I taught myself to lucid dream. You can too.
We still don’t know much about the experience of being aware that you’re dreaming—but a few researchers think it could help us find out more about how the brain works.
Is everything in the world a little bit conscious?
The idea that consciousness is widespread is attractive to many for intellectual and, perhaps, also emotional
reasons. But can it be tested? Surprisingly, perhaps it can.
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