STABILITY OF THE 32 MN FORCE CALIBRATION MACHINE AND INDUSTRIAL APPLICATIONS

The laboratory has a metrological test and calibration machine for the range 0.5 MN to 32 MN and the traceability to the German standard is ensured by means of periodic checks with 2 MN, 5 MN and 16 MN transfer standards of PTB and 2 MN and 10 MN transfer standards of ICMET. The paper contains a short presentation of the 32 MN machine, the results of its periodical checks performed within 1995-2002. A special attention is paid to the tests performed in 2001 with 2 MN and 16 MN PTB transfer standards according to EN 10000/3-94 and DKD procedure, as well as the tests of measuring equipment used in industrial applications. The aim of these tests was to check the long-term stability of the metrological performances of the machine reference measuring system. Key words: measurement uncertainty, force calibration machine, transfer standard