A method for the evaluation of the response of torque transducers to dynamic load profiles


  • Rafael Soares Oliveira National Institute of Metrology, Quality and Technology - INMETRO
  • Renato R. Machado Instituto Nacional de Metrologia, Qualidade e Tecnologia INMETRO Duque de Caxias
  • H. Lepikson Federação das Indústrias do Estado da Bahia - FIEB Salvador
  • Thomas Fröhlich Technische Universität Ilmenau Ilmenau
  • René Theska Technische Universität Ilmenau Ilmenau




The traceability of the torque quantity finds a gap when there is a regime with torque variation rates. The traditional calibration methods define the references to be on the static regime, with null torque rates. This paper presents a method for providing torque traceability to rotating sensors under high torque variation rates. The principle of applying acceleration pulses to rotating shafts, with mounted reference discs with known mass moments of inertia thereon, is presented herein, followed by a description of sequential proceedings for obtaining an analysis in the time domain. The development of the uncertainty budget is also discussed. Demonstrative experimental data is used in order to ratify the principle and to maintain a qualitative approach to the theoretical description of these methods. The research gives a very good idea of the necessary different future approaches to guarantee traceability for mechanical quantities.

Author Biography

Rafael Soares Oliveira, National Institute of Metrology, Quality and Technology - INMETRO

National Institute of Metrology, Quality and Technology (Inmetro)
Scientific and Industrial Metrology (Dimci)
Mechanical Metrology Division (Dimec)
Force Laboratory (Lafor)
Tel.: +55 21 2679-9037






Research Papers