基于距离加权多极展开法的磁场恢复技术

IF 1.8 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

EPL Pub Date : 2023-08-30 DOI:10.1209/0295-5075/acf51f

Binbin Liu, Zhen Yang, Li-e Qiang, Xiaodong Peng, Xiaoshan Ma, Peng Xu, Ziren Luo, Wenlin Tang, Yuzhu Zhang, Chen Gao

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引用次数: 0

摘要

星载引力波探测器要求测试质量(TM)处于超低扰动状态。然而，磁场波动会干扰TM并产生加速度噪声。为了评估磁场对磁极的影响，需要对磁极附近的磁场进行实时监测和重建。提出了一种距离加权多极展开法(DWME)，并对其磁场重建精度进行了分析。结果表明，与传统方法相比，所提出的DWME方法显著提高了重建精度。将敏感轴向磁场的平均重构误差从1.2%降低到0.8%，最大重构误差从16%降低到8%。在在轨情况下，DWME方法也优于传统方法。

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Magnetic field recovery technique based on distance weighting multipole expansion method

A space-borne gravitational wave detector requires the test mass (TM) to be in an ultra-low disturbance state. However, magnetic field fluctuations will disturb the TM and produce acceleration noise. To assess the influence of the magnetic field on the TM, it is necessary to monitor and reconstruct the magnetic field near the TM in real time. In this paper, a distance weighting multipole expansion (DWME) method was proposed, and its magnetic field reconstruction accuracy was analyzed. The results demonstrated that the proposed DWME method significantly improved the reconstruction precision compared to traditional methods. It reduced the average reconstruction error of the sensitive axial magnetic field from 1.2% to 0.8% and the maximum error from 16% to 8%. In the in-orbit situation, the DWME method also outperforms traditional methods.

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来源期刊

EPL 物理-物理：综合

CiteScore

3.30

自引率

5.60%

发文量

332

审稿时长

1.9 months

期刊介绍： General physics – physics of elementary particles and fields – nuclear physics – atomic, molecular and optical physics – classical areas of phenomenology – physics of gases, plasmas and electrical discharges – condensed matter – cross-disciplinary physics and related areas of science and technology. Letters submitted to EPL should contain new results, ideas, concepts, experimental methods, theoretical treatments, including those with application potential and be of broad interest and importance to one or several sections of the physics community. The presentation should satisfy the specialist, yet remain understandable to the researchers in other fields through a suitable, clearly written introduction and conclusion (if appropriate). EPL also publishes Comments on Letters previously published in the Journal.