磁力矩器對(duì)星外等離子體分布影響分析

The influence of magnetorquer on the space plasma

摘要: 文章通過計(jì)算某型號(hào)磁力矩器工作時(shí)產(chǎn)生的磁場(chǎng)，分析了等離子體在磁力矩器磁場(chǎng)中的運(yùn)動(dòng)狀態(tài)，計(jì)算了電子在磁力矩器周圍的密度分布。結(jié)果顯示：在磁力矩器工作時(shí)，周圍電子密度將增大，最大可為正常密度的10倍。密度增大的區(qū)域尺寸在軸向上略大于磁力矩器的長(zhǎng)度，越靠近磁力矩器的兩端電子密度越小，形成一個(gè)“凹陷”；徑向上主要在半徑小于4 m的范圍內(nèi)。在此區(qū)域應(yīng)避免擺放對(duì)帶電粒子敏感的部組件。

Abstract: This paper studies the influence of magnetorquer on the space plasma and presents calculations of the motion states of plasma in the magnetic field produced by the magnetorquer in operation, and the electron density distribution around the magnetorquer. The results show that the electron density around the magnetorquer will increase during the operation of the magnetorquer. The axial dimension of the region with increased electron density is a little larger than the length of magnetorquer. In the region, the electron density is 2-5 times higher than the value when the magnetorquer is not in operation and even 10 times in some places.

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