Absolute measurement of the Newtonian force and a determination of G

被引：31

作者：

Kleinevoss, U ^{[1
]}

Meyer, H ^{[1
]}

Schumacher, A ^{[1
]}

Hartmann, S ^{[1
]}

机构：

[1] Univ Wuppertal, Dept Phys, D-42097 Wuppertal, Germany

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1999年 / 10卷 / 06期

关键词：

gravitational constant G; microwave resonator (GHz);

D O I：

10.1088/0957-0233/10/6/313

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 x 10(-11) m(3) kg(-1) s(-2) with an uncertainty of 432 ppm dominated by systematic considerations.

引用

页码：492 / 494

页数：3

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