Main Image
Volume 353 - International Conference on Precision Physics and Fundamental Physical Constants (FFK2019) - Session 8: The gravity experiment of Roland Eötvös
Remeasurement of the Eötvös experiment - status and first results
G. Tóth,* L. Völgyesi, G. Szondy, G. Péter, B. Kiss, G.G. Barnafoldi, L. Deák, C. Égető, E. Fenyvesi, G. Gróf, L. Somlai, P. Harangozó, P. Levai, P. Ván
*corresponding author
Full text: pdf
Pre-published on: 2019 October 19
Published on:
Abstract
Preparations of remeasurement of the Eötvös-Pekár-Fekete (EPF) experiment for the Weak Equivalence Principle were reported in [4]. Here we give a brief overview of the gravity field bias and try to estimate its possible effect on the EPF experiment. We report our first test results in the solar gravity field with Cu-Au and Al-Au pairs. The estimated errors were at level 2·10⁻⁹, the same accuracy that was obtained by EPF. We also found that angular positions of the balances showed good correlation with bandpass-filtered air pressure variations hence Wiener filtering may significantly reduce this correlated noise. We did not detect any deviation from the equivalence principle considering the estimated measurement error.
Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.