Gravitational constant measured by means of a beam balance

被引：33

作者：

Schurr, J ^{[1
]}

Nolting, F ^{[1
]}

Kundig, W ^{[1
]}

机构：

[1] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.80.1142

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new method to measure the gravitational constant G. A beam balance compares the weight of two 1-kg test masses and measures the gravitational force of two field masses with a statistical uncertainty of 10 ng. Two vessels in a refined arrangement are used as field masses. They have been filled with water as a test. G has been determined with an uncertainty of 240 ppm. The next step is to fill the vessels with mercury. Because of the tiger signal and further refinement of our experiment, we hope to reach the design uncertainty of 10 ppm. [S0031-9007(97)05223-X].

引用

页码：1142 / 1145

页数：4

共 18 条

[1] Preliminary results of a determination of the Newtonian constant of gravitation: A test of the Kuroda hypothesis [J].