In order to ensure the accuracy and reliability of the pitch and half Angle of the thread template and im-prove the measurement efficiency,this paper introduces the method of measuring the thread template by using the flash measuring instrument instead of the traditional image measuring instrument,analyzes the measurement process and data,and puts forward the accurate measurement method,measurement model and measurement uncertain-ty.At the same time,through the principle analysis and test comparison,the reference is provided for the calibra-tion of thread template.
维普
万方数据