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针对当前双弱连接超流体陀螺方案中存在的变输入角速度信息的提取和系统量程小的问题,提出了相应的角速度信息提取方法和有效扩大量程的方案(幅值锁定技术)。在积分处将采样时间间隔内的角速度值做恒值处理,角速度信息从薄膜位移振动信息中提取;幅值锁定法是将流量幅值持续锁定在某点,实时计算反馈相位。对两个解决方案进行了深入的仿真与分析,并对系统的误差进行了修正和补偿。结果表明,两个解决方案都是切实可行的。
Aiming at the problem of extracting variable input angular velocity information and small system range in current double weakly connected super-fluid-body gyroscope, the corresponding angular velocity information extraction method and the effective range expansion scheme (amplitude locking technique) are proposed. In the integral part, the angular velocity value in the sampling time interval is treated as a constant value, and the angular velocity information is extracted from the vibration information of the film displacement. The amplitude locking method continuously locks the flow amplitude at a certain point and calculates the feedback phase in real time. The two solutions are deeply simulated and analyzed, and the error of the system is corrected and compensated. The results show that both solutions are feasible.