| 摘要 |
A scratch measurement system employs a class I or class II laser and digital signal processing in conjunction with a vision system to measure scratch depth. Video data acquired by a vision system is processed to determine threshold values wherein the scratch surface is detected and scratch depth computed. Hard copy graphic results as well as numerical scratch depth measurements are provided on a printer. The unit may be calibrated to a certifiable standard and is provided in a low-cost portable package, suitable for use in manufacturing and repair situations as well as in the laboratory.
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