Measurement of the Newtonian gravitational constant based on the principle of free fall

• 来源期刊: 科学通报(英文版)
• 年，卷（期）: 2009,（6）
• 页码范围: 1019-1025
• 页数: 7页
• 语种: 英文
• DOI: 10.1007/s11434-009-0091-9

摘要

The Newtonian gravitational constant (G) is one of the fundamental physical constants. This paper introduces a method to determine the Newtonian gravitational constant based on the principle of free fall,through measuring the change of gravity from the disturbed mass with an FG5/112 absolute gravimeter.This method has good repeatability. The measurement precision can be improved by error control anda large number of experiments. The constant G is obtained by two experiments, and the measured value is (6.6665±0.0554)×10-11 m3/(kg, s2).