Measurement and Testing Technology nanoscale increasingly important

With the development of modern high-tech, ultra-precision processing technology has been used widely for ultra-precision machining technology requirements are also increasing,  synthetic diamond powder  machining technology development is inseparable from the advanced testing methods, nanoscale Measurement and Testing Technology therefore become increasingly important. Over the past decade, domestic and foreign scholars on the surface of ultra-fine processing method of testing theory a lot of research and made many  cutting tools  methods and principles, such as: mechanical stylus method, optical stylus method, scattering, and other colors grade stripes, optical, electron microscopy method. The authors analyzed the current typical nano-measurement method, discussed their respective applications and the advantages and disadvantages.