低轨微波遥感卫星磁设计及试验验证  

Magnetic Design and Test Verification for Low-orbit Microwave Remote Sensing Spacecraft

作　　者：吴卫权 陈丽 孙晓春 闫晓 WU Weiquan;CHEN Li;SUN Xiaochun;YAN Xiao(Shanghai Institute of Spacecraft Equipment, Shanghai 200240, China)

机构地区：[1]上海卫星装备研究所

出　　处：《航天器工程》2019年第3期8-13,共6页Spacecraft Engineering

摘　　要：分析了低轨微波遥感卫星主要磁源分布特征,针对微波遥感卫星载荷功率大、装载的收发(TR)组件、有源天线阵、电源及SAR等系统间供电电流回路、接地回路可能产生较大杂散磁矩的因素,提出了一些有效减少大功率微波遥感卫星杂散磁矩的设计方法和工艺措施并进行相关试验验证。测试结果表明:卫星整星接地设计,小型化TR组件及有源天线阵、星体内电缆等结构工艺布局和走线设计合理;显著地减少了整星静态永磁矩、动态场杂散磁矩,卫星磁矩满足指标要求。The main magnetic source distribution characteristics of low-orbit microwave remote sensing spacecraft is analyzed and some effective craftwork measures and design methods for reducing spacecraft stray magnetic moment is put forward according to the subsystems diversity such as large power capacity onboard TR components, active antenna array, electric power supply and SAR, supply current circuit, ground current circuit which may induce lager stray magnetic moments. The test results shown that the total static permanent magnetic moment, dynamic stray magnetic moment can be greatly reduced with reasonable ground connection of the whole spacecraft, miniaturation of TR components and active antenna array, as well as rational layout of the harness. The resulted magnetic moment is up to the required specifications.

关 键 词：微波遥感卫星 磁设计 磁试验 

分 类 号：V423.43[航空宇航科学与技术—飞行器设计]