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惯性仪表有源磁悬浮的动态特性实质上反映着其浮子组件五个自由度的动力学规律。针对时分式有源磁悬浮动态特性测试在工程实现上的具体困难， 基于多输入多输出（ Ｍ Ｉ Ｍ Ｏ） 系统的测试和辨识原理， 采用时分信号激励和近似的时序同步数据采集方法， 进行了磁悬浮各回路的时域测试和辨识， 结果表明， 开环状态下的浮子运动有一定交叉耦合关系， 在有源磁悬浮设计和调试中应当加以考虑。同时分析了辨识的可行性和可信度。
The dynamic characteristics of inertial instrument active magnetic levitation essentially reflect the dynamics of five degrees of freedom of its float assembly. According to the test and identification principle of multiple input multiple output (M I M O) system, aiming at the practical difficulties of time-based active magnetic suspension dynamic test in engineering implementation, time-sharing signal excitation and approximate time-series synchronous data acquisition are adopted The test and identification of the magnetic levitation circuits in time domain show that there is a certain cross-coupling relationship between the open-loop state and the floating magnetic levitation, which should be considered in the design and debugging of active magnetic levitation. At the same time, the feasibility and credibility of identification are analyzed.