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

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4 Author(s)
Walesch, H. ; Fachbereich Phys., Bergische Univ., Wuppertal, Germany ; Meyer, H. ; Piel, H. ; Schurr, J.

We present the results of a gravitational experiment which is based on a microwave resonator. The gravitational force of a test mass acting on the resonator is measured as a function of distance. No deviation from Newton's law on a level of a few parts in 10-4 in the near range has been found and the gravitational constant G has been determined with a relative accuracy of 1.1×10-4 to be: G=(6.6719±0.0008)×10-11 Nm2 kg -2

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Instrumentation and Measurement, IEEE Transactions on  (Volume:44 ,  Issue: 2 )