Present state and development perspectives on new generation of standard and metrology system of GPS

Abstract：The new generation standard system of GPS derived from the first generation standard of GPS language is a set of rounded systems of standard and metrology about product geometrical features, and covers workpiece dimensions, form and position, surface topography and so on. The new GPS, which regards metrology mathematics as the essential language structure, relates standards to metrology by the transitive relations of uncertainty, and integrates product functions, specification and inspection (verification) . The new GPS is designed as the means of communication founded by the same technology language in which designers, production engineers and metrologists exchange information concerning the functional requirements of products. The establishment and development, overall structure of the new GPS system are discussed, and then according to the characters and contents of GPS and the situation of Chinas GPS standard, the tendency in development of research and application of GPS system is proposed in the paper.

Keyword：GPS;standard and metrology;product verification;