Study On The Method Of Roundness Error Measurement Based On GPS Operation Technology

摘要

With the development of the measurement techniques, especially the precision and ultra-precision measurement techniques, the measurement process of the geometric error based on the old GPS (geometrical product specification and verification) technology can hardly meet the requirement of high accuracy and efficiency. A new GPS system which was introduced by ISO/TC213 and based on metrology, has unified the whole process of product's specification and verification, and also realizes the digitized and standardized measurement. It provides a new approach to the measurement of the geometrical error by using the operation and operator technologies. In this paper the application of the operation technology in roundness error measurement is described in detail, moreover, the method and the key technique of realizing the process are also put forward. Lastly, by designing the appropriate verification operator of roundness error, the measurement process is specified and the measurement uncertainty is also decreased.