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基于热相移辅助的超流体陀螺理论上的测量灵敏度能达到10-7rad/s,具有发展为高精度陀螺的潜力。但由于热相移注入过程中存在一定惯性,会使得超流体陀螺的测量精度急剧下降。为消除热相位注入惯性给系统带来的影响,本文提出了基于Fuzzy-PID的智能控制方案,该方案能针对大惯性产生的温度失调进行抑制,具有鲁棒性好、精确度高和不需要对对象精确建模等优点。本文根据该系统特性设计了超流体陀螺热相移模糊控制器,且通过仿真验证表明本文设计的Fuzzy-PID控制器有效减小了热相位注入惯性对超流体陀螺测量精度的影响。
Based on the thermal phase shift assistance, the theory of superfluid gyroscope can achieve the theoretical sensitivity of 10-7rad / s, which has the potential to develop into a high-precision gyroscope. However, due to the existence of a certain inertia in the process of thermal phase-shift injection, the measurement accuracy of the super-fluid-body gyroscope rapidly decreases. In order to eliminate the influence of thermal phase injection inertia on the system, an intelligent control scheme based on Fuzzy-PID is proposed in this paper. This scheme can suppress the temperature imbalance caused by large inertia, has good robustness, high precision and does not require Accurate modeling of objects and so on. According to the characteristics of the system, this paper designs a super-fluid gyro thermal phase-shift fuzzy controller, and the simulation results show that the Fuzzy-PID controller designed in this paper can effectively reduce the effect of thermal phase injection inertia on the measurement accuracy of the superfluid gyro.