Ai. Astashenkov et al., NEW STATE STANDARD FOR THE UNIT OF LENGTH FOR THE PARAMETERS OF THE INVOLUTE SURFACES AND HELIX ANGLE OF A GEAR TOOTH, Measurement techniques, 40(9), 1997, pp. 847-851
Interference methods of measurement are involved in the principle desc
ribed for the reproduction of standards of unit of length for involute
surfaces and the helix angle of gear teeth. The results of a metrolog
ical analysis of the standard are considered.