Article1999

Absolute measurement of the Newtonian force and a determination ofG

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Scientific Measurement and Uncertainty Evaluation Relativity and Gravitational Theory Pulsars and Gravitational Waves Research

Abstract

We present the status and preliminary results of the Wuppertal gravitational experiment which is based on a microwave resonator. The gravitational force of two test masses acting on the resonator is measured as a function of distance. From new data taken recently we determine the gravitational constant G and test Newton's inverse square law in a distance range between 0.7 m and 2.2 m. From our measurements we obtain a preliminary value for G = 6.6735 × 10-11 m3 kg-1 s-2 with an uncertainty of 432 ppm dominated by systematic considerations.

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1995The gravitational force at mass separations from 0.6 m to 2.1 m and the precise measurement of G

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2014A simple pendulum laser interferometer for determining the gravitational constant 2001Precise Determination of Separation Between Spherical Attracting Masses in Measuring the Gravitational Constant G 2020Measurement of the Newtonian constant of gravitation G by precision displacement sensors 2002Bestimmung der Newtonschen Gravitationskonstanten G

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