PTB’s New 200 kN Deadweight Force Standard Machine

R. Kumme, H. Kahmann, F. Tegtmeier, N. Tetzlaff, D. Röske

Abstract

This paper describes PTB’s new 200 kN deadweight force standard machine with a large force range from 50 N up to 200 kN with lowest relative uncertainties of 0.001% in the range from 5 kN up to 200 kN which was possible by using deadweights of stainless steel in the quality of mass standards of class F1. The deadweights are adjusted according the gravity value and the masses are then determined with a relative expanded uncertainty of 3 × 10^-6. This maschine allows the investigation and calibrate force transducers in tension and compression without changing the installation position so that it is possible to determine the hysteresis effect (remanance) if the force changes from tension to compression.

Keywords

deadweight force standard machine

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IMEKO-TC3-2017-032.pdf

DOI

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IMEKO TC

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

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