Electrostatic sensor modeling for torque measurements

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Mika, M.; Dannert, M.; Mett, F.; Weber, H.; Mathis, W. et al.: Electrostatic sensor modeling for torque measurements. In: Advances in Radio Science 15 (2017), S. 55-60. DOI: https://doi.org/10.5194/ars-15-55-2017

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Abstract: 
Torque load measurements play an important part in various engineering applications, as for automotive industry, in which the drive torque of a motor has to be determined. A widely used measuring method are strain gauges. A thin flexible foil, which supports a metallic pattern, is glued to the surface of the object the torque is being applied to. In case of a deformation due to the torque load, the change in the electrical resistance is measured. With the combination of constitutive equations the applied torque load is determined by the change of electrical resistance. The creep of the glue and the foil material, together with the temperature and humidity dependence, may become an obstacle for some applications Kapralov and Fesenko(1984). Thus, there have been optical and magnetical, as well as capacitive sensors introduced ). This paper discusses the general idea behind an electrostatic capacitive sensor based on a simple draft of an exemplary measurement setup. For better understanding an own electrostatical, geometrical and mechanical model of this setup has been developed.
License of this version: CC BY 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Fakultät für Elektrotechnik und Informatik

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1 image of flag of Germany Germany 43 86.00%
2 image of flag of United States United States 4 8.00%
3 image of flag of China China 2 4.00%
4 image of flag of Belarus Belarus 1 2.00%

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