标题： 弱等效原理用人工地球卫星测试的可能性 显示英文标题

标题： On the possibility of testing the Weak Equivalence Principle with artificial Earth satellites

摘要： 在本文中，我们通过分析一对不同组成的的人造卫星在地球引力场中沿相同形状和大小轨道运动的轨道运动，来检验弱形式的等效原理的可能性。 结果表明，实际可达到的精度水平约为10^-10或稍好一些。 这主要受到以下事实的限制：由于不可避免的轨道注入误差，无法将卫星放入完全相同半径的轨道，并且这种差异只能以有限的精度知道。 目前的精度水平，通过扭秤地面测量以及利用月球激光测距技术分析太阳引力场中的地月运动获得，约为10^-13。 提出的基于空间的任务STEP，\muSCOPE ，GG和SEE旨在达到10^-15至10^-18的精度水平。 显示英文摘要

摘要： In this paper we examine the possibility of testing the equivalence principle, in its weak form, by analyzing the orbital motion of a pair of artificial satellites of different composition moving along orbits of identical shape and size in the gravitational field of Earth. It turns out that the obtainable level of accuracy is, realistically, of the order of 10^-10 or slightly better. It is limited mainly by the fact that, due to the unavoidable orbital injection errors, it would not be possible to insert the satellites in orbits with exactly the same radius and that such difference could be known only with a finite precision. The present-day level of accuracy, obtained with torsion balance Earth-based measurements and the analysis of Earth-Moon motion in the gravitational field of Sun with the Lunar Laser Ranging technique, is of the order of 10^-13. The proposed space-based missions STEP, \muSCOPE, GG and SEE aim to reach a 10^-15-10^-18 precision level.