%0 Journal Article
%T Measurement of the Newtonian gravitational constant based on the principle of free fall<br>
%A Yong Wang
%A XiaoPing Ke
%A WeiMin Zhang
%A HouZe Xu
%A HuBiao Wang
%A Hua Chai
%A <br>
%J 科学通报(英文版)
%D 2009
%I 
%X 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 and a 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). Supported by the National Basic Research Program of China (Grant No. 2003CB716300) and Key Project of the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX2-YW-125)
%K Newton
%K gravitational constant
%K absolute gravimeter
%K free fall<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=8D76C4ACA69AEEE317981C2CF3EA404F&yid=DE12191FBD62783C&vid=318E4CC20AED4940&iid=B31275AF3241DB2D&sid=CBC69BEA05C12902&eid=2E7DE3EE3BC61ED0&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=20