陷波滤波器补偿液浮陀螺阻尼比的研究  

Research on Notch Filter Compensation Damping Ratio of Liquid Floated Gyroscope

作　　者：黄业绪[1] 史忠科[1] 曹社平 马义利 李雷 厉毓良 

机构地区：[1]西北工业大学自动化学院,西安710072 [2]陕西华燕航空仪表公司,陕西汉中723102

出　　处：《传感技术学报》2005年第2期410-413,共4页Chinese Journal of Sensors and Actuators

摘　　要：液浮陀螺的阻尼比随温度变化剧烈,采用陷波滤波器,通过选择陷波器的中心频率,使陷波器的中心频率与陀螺的固有频率相等,从而使陷波器的两个零点与陀螺的两个极点相抵消,则输出给系统的阻尼比由陷波器的两个极点确定,以减小阻尼比随温度的变化范围。试验与应用结果表明,该方法将陀螺的阻尼比范围由原来的0.3～2.7减小为0.5～0.8(温度范围均为:85℃～-55℃)。The damping ratio of liquid floated gyroscope varies dramatically with the temperature. This paper presents use notch filter compensation damping ratio of liquid floated gyroscope by choice central frequency of notch filter equal natural frequency of gyro, in order to ensure two zero points of notch filter to cancelling two poles of gyro, the output of damping ratio for system is determined thoroughly by two poles of notch filter, then the varying range is decreased dramatically on damping ratio with the temperature. Experiment and application showing the proposed method is so effective that the range of damping ratio is decreased from 0.3～2.7 to 0.5～0.8(at 85℃～-55℃).

关 键 词：陷波滤波器 补偿 陀螺 阻尼比 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]