Realization of forces (2N-20N) by primary method

摘要

The present paper describes the preliminary results of the metrological characterization of the newly design and developed force machine to realize the forces in the range 2N- 20N with an expanded uncertainty of 50 ppm. The characterization of the machine is carried out in compression using two transfer force standards of 5 and 20 Newton capacity. The calibration of the transfer standards directly against the dead weight force machine shows that the repeatability and reproducibility are better than 0.002percent and 0.003 respectively, over the full range of measurement.