Abstract
The vibration / noise of gear is one of the serious problems for vehicles, e.g. automobile, train and helicopter. The characteristics of vibration / noise of gear are influenced by tooth flank form of sub micron meter order and therefore strict quality control of tooth flank form is demanded. Involute artifact, which is used to calibrate the measuring machine of tooth flank form of gear, must be measured extremely precisely. In previous report, the method to measure the involute artifact directly by laser interferometer is proposed. In this report, it is revealed that slip between artifact and rail harm measurement in this method and non–slip driving method is developed. It improves repeatability of the measurement and it is confirmed that highly precise measurement of involute artifact is possible.