System for measurement of peaks on surfaces

Details System for measurement of peaks on surfaces System for measurement of peaks on surfaces

1997-01-17

1998-09-29

Raevis, Robert

Measuring and testing

Surface and cutting edge testing

Roughness

G01B 734

Patent

active

058147225

ABSTRACT:
A method of characterizing the roughness of a surface comprises counting peaks on a surface using a sensor by locating direction changes above a minimum and searches for the next direction change and where three changes are found of a valley, peak and another valley, one peak is counted. A signal qualifies as a peak if its short leg is above the normal threshold.

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patent: 3847730 (1974-11-01), Doering
patent: 4084324 (1978-04-01), Whitehouse
patent: 4951497 (1990-08-01), Gilibert
patent: 5242831 (1993-09-01), Oki

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