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Mathematical Modelling and Data Analysis

Department 8.4

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Title: Investigations for the model-based dynamic calibration of force transducers by using shock excitation
Author(s): M. Kobusch, S. Eichstädt, L. Klaus and T. Bruns
Year: 2015
Volume: 4
Issue: 2
Pages: 45-51
File URL: fileadmin/internet/fachabteilungen/abteilung_8/8.4_mathematische_modellierung/Publikationen_8.4/ACTA_IMEKO_2014_Kobusch_et_al_preprint.pdf
Web URL: http://acta.imeko.org/index.php/acta-imeko/article/view/IMEKO-ACTA-04%20%282015%29-02-08/384
Keywords: model-based dynamic calibration, dynamic calibration, dynamic modelling,editor,force transducers, imeko
Tags: 8.42, Dynamik
Abstract: Within the scope of the joint research project EMRP IND09 “Traceable dynamic measurements of mechanical quantities”, numerous measurements were performed at PTB’s 20 kN primary shock force calibration device to investigate and validate the approach of a model-based dynamic calibration of force transducers by using shock excitations. The tests included several strain gauge force transducers of greatly differing structural design, size, weight and mechanical coupling. By looking at a few examples, some investigated physical models of the measurement set-up and a developed data analysis procedure for parameter identification based on measured shock data are presented and discussed. The models reproduce the dynamic response including the observed modal oscillations of various origins that limit the usable measurement bandwidth. Moreover, these modal oscillations may have an important role for the parameter identification process, which is further discussed. This paper is an extended version of the original contribution to the IMEKO 2014 conference in Cape Town, South Africa.
Note: Open Access

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