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arXiv 2102.11087astro-ph.IMgr-qcphysics.ins-det
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MICROSCOPE仪表飞行特性

MICROSCOPE instrument in-flight characterization

Ratana Chhun, Emilie Hardy, Manuel Rodrigues, Pierre Touboul, Gilles Métris, Damien Boulanger, Bruno Christophe, Pascale Danto, Bernard Foulon, Pierre-Yves Guid… 展开作者

Ratana Chhun, Emilie Hardy, Manuel Rodrigues, Pierre Touboul, Gilles Métris, Damien Boulanger, Bruno Christophe, Pascale Danto, Bernard Foulon, Pierre-Yves Guidotti, Phuong-Anh Huynh, Vincent Lebat, Françoise Liorzou, Alain Robert

摘要:

由于显微镜仪器的目标是测量低至几个10 $^{-15}$ \,m\,s $^{-2}$的加速度,并且不能在地面上操作,因此很明显,有大量的时间专门用于其在飞行中的表征。在其发布和首次运行之后,表征实验涵盖了仪器设计的所有方面,以巩固科学测量结果和随后从中得出的结论。在整个任务过程中,我们验证了伺服控制,甚至更新了每个惯性敏感器的PID控制律。由于几个专门的实验和仪器灵敏度的分析,我们已经能够确定一些仪器特性,如偏置,金线和静电刚度,非线性,耦合和自由运动范围的测试质量,这可能首先影响科学目标,其次是分析仪器的良好运行。

英文摘要:

Since the MICROSCOPE instrument aims to measure accelerations as low as a few 10$^{-15}$\,m\,s$^{-2}$ and cannot operate on ground, it was obvious to have a large time dedicated to its characterization in flight. After its release and first operation, the characterization experiments covered all the aspects of the instrument design in order to consolidate the scientific measurements and the subsequent conclusions drawn from them. Over the course of the mission we validated the servo-control and even updated the PID control laws for each inertial sensor. Thanks to several dedicated experiments and the analysis of the instrument sensitivities, we have been able to identify a number of instrument characteristics such as biases, gold wire and electrostatic stiffnesses, non linearities, couplings and free motion ranges of the test-masses, which may first impact the scientific objective and secondly the analysis of the instrument good operation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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