## Decimal-by-Decimal Analysis of the Gravitational Constant Value as Exemplified by Torsion Balance

**Authors:** D.G. Kiryan, G.V. Kiryan

Term "gravitational constant" was for the first time introduced more than 200 years ago, and since that time attempts are still being made to refine its value. As per the materials of Committee on Data for Science and Technology, all indirect measurements of the "gravitational constant" obtained by various research groups exhibit equality of two first decimals in the SI system and spread of subsequent decimals. We have found an explanation for this situation by solving the direct metrological problem, namely, calculation of the required measurement accuracies of each torsion balance parameter from the preset accuracy of the "gravitational constant" value, based on the torsion balance mathematical model. Decimal-by-decimal analysis of the torsion balance sensitivity, jointly with the CODATA data, lead us to the assumption that all the variety of the "gravitational constant" values obtained at different experimental setups may be explained by the absence of appropriate planning of the final result accuracy.

**Comments:** 13 Pages. 4 Figures, 4 Tables

**Download:** **PDF**

### Submission history

[v1] 2017-08-20 14:40:40

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