Patent ID: 6148098
Filing Date: 2000-11-14
Classification: G01B,G01M,G06T

Abstract:
A method of optoelectronically determining the contact patterns on tooth flanks of gears, the tooth flanks of at least one gear of a pair of gears to be tested being marked by application of a marking compound, characterized by the following steps:(a) picking-up and storing a first digital image (FIG. 2) of at least one drive and/or coast side tooth flank of the marked gear containing a outline, said tooth flank having a contact pattern;(b) processing said first digital image to determine a second digital image (FIG. 5) containing at least a portion of the outline of said tooth flank;(c) processing said first digital image to determine a third digital image (FIG. 7) containing said contact pattern; and(d) superimposing said third digital image (FIG. 7) on said second digital image (FIG. 5) of said tooth flank to determine a fourth digital image (FIG. 8) of said tooth flank, said fourth digital image containing at least the tooth flank outline portion determined in step(b) and having its contact pattern inscribed therein, and being analyzable to determine the position and size of the contact pattern with reference to the outline.