IMPROVEMENTS OF THE NATIONAL HARDNESS PRIMARY STANDARD MACHINE ON VICKERS SCALES

摘要

The present paper discusses the results of the research conducted during the improvement of the national hardness primary standard machine on Vickers scales. The improvement consisted in the creation of an automated complex for measuring the indentation diagonal length through the indentation transfer via a digital camera to the computer controlling the measurement process. The peculiarities scales of order were taken into account while examining the hardness primary standard machine and determining the metrological characteristics. The modernization of the national primary standard machine allowed to minimize measurement uncertainty, increase productivity and improve working conditions on the standard machine.