A case study in model-based dynamic calibration of small strain gauge force transducers

Authors

  • Michael Kobusch Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig
  • Sascha Eichstädt Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin

DOI:

https://doi.org/10.21014/acta_imeko.v6i1.433

Abstract

Investigations of the model-based dynamic calibration of a small strain gauge force transducer of high bandwidth revealed new challenges for parameter identification. This paper discusses a more generalized mechanical model of the calibration set-up employed taking account of the transducer’s connection to its mechanical environment at both ends. Based on new experimental sine and shock force data, the improved model is studied and its parameters are identified. It is shown that the proposed model is capable of linking the calibration results of both calibration methods to a much better degree. This paper is an extended version of the original contribution to the IMEKO 2015 conference in Prague, Czech Republic.

Author Biographies

Michael Kobusch, Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig

Scientist

Sascha Eichstädt, Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin

Scientist

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Published

2017-04-25

Issue

Section

Research Papers