Reducing the Measurement Time of the Torsion Balance
The main problem of torsion balance measurements is the long damping time however it is possible to significantly reduce the observation time by modern technology. The damping curve can be precisely determined by CCD sensors as well as computerized data collection and evaluation. The first part of this curve makes it possible at least theoretically to estimate the final position of the arm at rest. A finite element solution of a fluid dynamics model based on Navier–Stokes equations is presented here to solve the problem.
KeywordsCCD sensor CFD Damping time Eötvös torsion balance Finite elements Navier–Stokes equations
This research was funded partially by OTKA project No. 76231. Constructive comments by the anonymous reviewers helped us to improve the paper.
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