engleski

OPTICAL MEASUREMENTS OF SURFACE ROUGHNESS CUT WITH WATERJET

The paper describes method for optical measurement of surface roughness (Ra) with computer vision. The equipment for roughness measurement is expensive, and the process itself is also time-demanding. This study is focused on the design of an instrument for nondestructive measurement and the determination of the roughness class by computer vision. The instrument needs to be of simple design, cost accessible and safe in practical application. It is intended for the fast determination of the roughness class of work specimens obtained by water jet cutting, and the setting of cutting parameters in accordance with the obtained results. The principle of instrument operation is based on measuring the intensity of the visible light spectrum reflected from the surface of the specimen and the correlation between these values and the measured roughness values.

surface roughness ; water jet ; optical measurement

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