COMPLETION AND MEASUREMENT UNCERTAINTY BUDGET OF THE MULTI-COMPONENT MEASURING DEVICE FOR FORCES UP TO 1 MN AND TORQUES UP TO 2 kN·m

Sebastian Baumgarten, Dirk Röske, Rolf Kumme

Abstract

This paper present the completion and the measurement uncertainty budget of a multi-component measuring facility. The new facility is part of the 1 MN force standard machine of the PTB. It enables the simultaneous generation of a torque in the range from 20 N·m to 2 kN·m in addition to axial forces 20 kN to 1 MN. This allows the characterization of measuring systems which require combined loads of axial forces <i>F</i>_z and torques <i>M</i>_z like friction coefficient sensors. The aim is a measurement uncertainty of (<i>k</i> = 2) for <i>M</i>_z < 0.01% and <i>F</i>_z < 0.002%. The physical model yields to extended measurement uncertainties (<i>k</i> = 2) for 20 N·m of 5.9 · 10^-5 and for the maximum load step 2000 N·m 4.2 · 10^-5.

Keywords

multi-component measurement, measurement uncertainty budget, torque, force, friction coefficient sensor

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IMEKO-WC-2015-TC3-031.pdf

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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