Material Dependency on Optical Surface Roughness Measurements

Format:

Conference/Event

Author/Creator:

Ng, G., author.

Conference Name:

Passenger Car Meeting and Exposition (1987-10-19 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1987

Summary:

Surface roughness measurement has been dominated by profilometers for years. The alternative optical methods offer advantages such as non-contact and high speed, therefore, they are more attractive to industries which would like to achieve on-line 100% inspection. In this study, a pair of photodetectors was used to detect the Intensity Ratio (IR) reflected from a ground metal surface, which was illuminated by a white light source. These IR values were plotted against the mechanical surface roughness Ra values and a good correlation was found. This study tested aluminum, brass, copper, stainless steel and tool steel in the roughness range from 0.08 to 2.54 microns (3 to 100 micro inches) Ra. The resulting IR curves varied uniquely

Notes:

Vendor supplied data

Publisher Number:

871946

Access Restriction:

Restricted for use by site license