Gravitational constant G measured with a superconducting gravimeter

P. Baldi; E. G. Campari; G. Casula; S. Focardi; G. Levi; F. Palmonari

doi:10.1103/PhysRevD.71.022002

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Gravitational constant G measured with a superconducting gravimeter

P. Baldi, E. G. Campari, G. Casula, S. Focardi, G. Levi, F. Palmonari

DOI 10.1103/PhysRevD.71.022002 · Physical Review D

T1

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Abstract

We report in this paper the results of a measurement of the gravitational constant G obtained in a laboratory at distances of about 1 m, using a superconducting gravimeter. The instrument measured the gravitational effect due to an annular mass of about 280 kg moving up and down around the gravimeter. The experiment yielded for the gravitational constant the value G=(6.675±0.007)10−11Nm2/kg2 which agrees, within its uncertainty, with the last CODATA value.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown