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本文提出了一种测量宇宙飞船重量和径向重心的极精确方法。这种方法是载入宇宙飞船任务要求所必需的,该项任务要求750公斤宇宙飞船径向重心的不可靠性小于1.0毫米。本方法是采用三只测力传感器(以下简称为传感器——译注)互成120°对称安装在与宇宙飞船轴线垂直的转盘上,每只传感器做六次测量。这六次测量的做法是:使放传感器的转盘和宇宙飞船绕测量支架纵轴周期地旋转。这种方法消除了径向重心测量操作中校直、校平和传感器校正产生的全部误差,使测量数据具有统计的最佳拟合。为了按此种方法完成测量,编制了相应的数据简化计算机程序,定名为 MASCM,并用于载入宇宙飞船重心的测量。该种方法的重心测量精度为0.14毫米,重量测量精度为0.01%。这种方法和相应的数据简化计算机程序也适用于其它任何系统的重量和重心测定。
This article presents a very accurate method of measuring the weight and radial center of gravity of a spacecraft. This method is necessary for the mission requirements of the spacecraft, which requires the unreliability of the radial center of gravity of the 750 kg spacecraft to be less than 1.0 mm. This method is to use three load cell (hereinafter referred to as the sensor - Annotation) 120 ° symmetry mounted on the turntable perpendicular to the axis of the spacecraft, each sensor to make six measurements. The six measurements were made by periodically rotating the turntable with the sensor and the spacecraft around the longitudinal axis of the measurement support. This method eliminates all errors due to alignment, leveling and sensor calibration in radial centroid measurements, resulting in a statistically best fit of the measured data. In order to complete the survey in this way, a corresponding data-reduction computer program has been prepared and named MASCM and used for the measurement of the center of gravity of the spacecraft. This method has a center of gravity measurement accuracy of 0.14 mm and a weight measurement accuracy of 0.01%. This method and the corresponding data reduction computer program also apply to the weight and center-of-gravity determination of any other system.