RESEARCH ON DIGITAL METROLOGY METHOD OF ROUNDNESS AND CYLINDRICITY ERROR BASED ON GPS

Provide the operator for metrology of roundness and cylindricity error and the selective principle of its key operation based on the study on the constitutive strategy of the key operation in the process of digital metrology.And put forward multi-purpose evaluation thought that takes high efficiency as the intention,its aim is to solve the problem such as simplification of evaluation target in traditional geometrical error metrology.Then show the operational mode of digital metrology thought and its engineering value by an example.Furthermore,illuminate that the digital metrology method based on GPS(geometrical product specification) is critical in realizing the digitalization,standardization and high efficiency of error evaluation.At the same time,it is important to promote the development and the effective application of the national(international) standard.