2kg铁球和20t钢板间万有引力常数测量实验  

Measurement experiment of gravitational constant between 2kg iron ball and 20t steel plate

作　　者：胡清桂[1] HU Qinggui(Center of Information,Neijiang Normal University,Neijiang 641112,China)

机构地区：[1]内江师范学院信息中心,四川内江641112

出　　处：《高师理科学刊》2022年第6期48-55,共8页Journal of Science of Teachers＇College and University

基　　金：国家自然科学基金项目(61275080)。

摘　　要：针对文献[1]《测量大质量物体间引力常数G的新实验方案》实施了实验.介绍实验特殊的测量机制,用超高精度激光位移传感器采集了30+万个数据进行前期分析,采集了约20万个数据,通过这些数据计算获得了新的G值9.09×10^(-9) N·m^(2)/kg^(2),精度为91.6%.而目前国际公认的G值是6.67259×10^(-11) N·m^(2)/kg^(2),两者相差较大.分析该实验值与国际上公认值相差较大的几种可能性,并总结了本次实验的经验和教训.It was carried out according to the document[1] that new experimental scheme for measuring the gravitational constant G between large objects.The special measurement mechanism is introduced,with ultra high precision laser displacement sensor,more than 300 000 figures are gleaned for preliminary analysis.About 200 000figures are obtained to calculate out the new value of G 9.09×10-9 N·m~2/kg~2,the accuracy is 91.6%.While the internationally recognized value is 6.672 59 × 10-11 N·m~2/kg~2,with a large difference.Several possible reasons are analyzed to explain the big difference between the newand traditional values.Some experiences and lessons of this experiment are summarized for reference.

关 键 词：万有引力常数 扭秤实验 精度 位移 

分 类 号：O314[理学—一般力学与力学基础] O412[理学—力学]