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Image processing checks wheels
By Railway Gazette International and Robert Preston2000-07-01T10:00:00
ENGINEERS at the Taiyuan Railway Research Institute of Science & Technology in China have developed a system that uses image processing to measure wheel profiles in motion at speeds between 3 km/h and 6 km/h. Activated by a photoelectric switch, the trackside system illuminates the wheel with a slit light ...
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