Parasitic loads in torque standard machines: a characterization, comparison, and evaluation

Authors

  • Sebastian Baumgarten Physikalisch-Technische Bundesanstalt (PTB) Bundesallee 100 38116 Braunschweig http://orcid.org/0000-0001-7424-9763
  • Dirk Röske Physikalisch-Technische Bundesanstalt (PTB) Bundesallee 100 38116 Braunschweig http://orcid.org/0000-0003-0396-8335
  • Jussi Ala Hiiro Teknologian tutkimuskeskus VTT Oy (VTT) Centre for Metrology MIKES Force Metrology Tehdaskatu 15 Puristamo 9P19 FI 87100 Kajaani
  • Lukas Vavrecka Cesky Metrologicky Institut Brno (CMI) Department of force and torque V Botanice 1504/4 150 72 Praha
  • Stefan Kock RWTH Aachen Chair for Wind Power Drives Campus-Boulevard 61 52074 Aachen
  • Jonas Gnauert RWTH Aachen Chair for Wind Power Drives Campus-Boulevard 61 52074 Aachen

DOI:

https://doi.org/10.21014/acta_imeko.v8i3.607

Abstract

In torque standard machines, different kinds of bearings are used to reduce the influence of parasitic loads under the assumption that such loads are low. In accordance with EURAMET cg-14, the signal of a torque transducer is averaged over three mounting positions. For this reason, the influence of parasitic loads on the transducer signal should be negligible. To test this assumption, two multi-component torque transducers are characterised in this study based on experimental, analytical, and numerical results. In this article, the parasitic loads of the torque standard machines at the Physikalisch-Technische Bundesanstalt (PTB), Teknologian tutkimuskeskus VTT Oy (VTT), and Cesky Metrologicky Institut (CMI) were characterised and compared. The results are presented together with a proposal for an evaluation.

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Published

2019-09-30

Issue

Vol. 8 No. 3 (2019)

Section

Research Papers

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