论文标题
显微镜任务：小故障对弱等效原理测试的统计和影响
MICROSCOPE mission: Statistics and impact of glitches on the test of the weak equivalence principle
论文作者
论文摘要
显微镜对弱等效原理（WEP）的空间测试是基于对两个测试质量在地球绕地球时经历的加速度差的分钟测量。根据卫星的轨道和旋转频率，发现对WEP的侵犯的检测将以众所周知的频率$ f _ {\ rm ep} $出现。因此，对实验进行了优化，以模拟$ f _ {\ rm ep} $的系统错误。小故障是在测试质量测得的加速度中可见的短寿命事件，最有可能起源于卫星涂层的裂缝。在本文中，我们表征它们的形状和时间分布。尽管本质上是随机的，但它们的到达分布时间是由轨道和旋转期调节的。它们对必须量化的WEP测试有影响。但是，可用的数据使我们无法明确解决这项任务。我们表明，故障会影响WEP的测试，直至先验未知的水平。因此，丢弃扰动数据是降低其效果的最佳方法。
MICROSCOPE's space test of the weak equivalence principle (WEP) is based on the minute measurement of the difference of accelerations experienced by two test masses as they orbit the Earth. A detection of a violation of the WEP would appear at a well-known frequency $f_{\rm EP}$ depending on the satellite's orbital and spinning frequencies. Consequently, the experiment was optimised to miminise systematic errors at $f_{\rm EP}$. Glitches are short-lived events visible in the test masses' measured acceleration, most likely originating in cracks of the satellite's coating. In this paper, we characterise their shape and time distribution. Although intrinsically random, their time of arrival distribution is modulated by the orbital and spinning periods. They have an impact on the WEP test that must be quantified. However, the data available prevents us from unequivocally tackling this task. We show that glitches affect the test of the WEP, up to an a priori unknown level. Discarding the perturbed data is thus the best way to reduce their effect.
