Single beam signal blanking for enhanced path length control in a ring laser gyro
    2.
    发明授权
    Single beam signal blanking for enhanced path length control in a ring laser gyro 有权
    单光束信号消隐用于环形激光陀螺仪中的增强路径长度控制

    公开(公告)号:US06354964B1

    公开(公告)日:2002-03-12

    申请号:US09455965

    申请日:1999-12-06

    IPC分类号: G01C1968

    CPC分类号: G01C19/665

    摘要: Single beam signal (SBS) components of the laser intensity monitor (LIM) signal are blanked from the path length control circuit (PLC). The AC component of the LIM signal, less the SBS components, is then integrated to produce a transducer mirror drive signal. SBS component blanking is synchronized to the dither pick-off signal. Peak power operation of the PLC is enhanced through the removal of the SBS components from the LIM signal.

    摘要翻译: 激光强度监测(LIM)信号的单波束信号(SBS)分量从路径长度控制电路(PLC)中消隐。 然后将LIM信号的交流分量(少于SBS组件)进行积分以产生换能镜驱动信号。 SBS组件消隐与抖动检测信号同步。 通过从LIM信号中去除SBS组件,可以提高PLC的峰值功率运行。

    RLG dither noise injection by means of reference modulation
    4.
    发明授权
    RLG dither noise injection by means of reference modulation 失效
    RLG通过参考调制进行抖动噪声注入

    公开(公告)号:US5774216A

    公开(公告)日:1998-06-30

    申请号:US160003

    申请日:1993-11-30

    IPC分类号: G01C19/66 G01C19/70

    CPC分类号: G01C19/664

    摘要: To reduce the accumulative lock-in effects of the ring laser gyroscope, the dither circuitry is provided with low frequency dither amplitude modulation. Such modulation is achieved by first developing a pair of complementary low frequency dither noise signals. These low frequency dither noise signals are then utilized by a modulator to modulate the dither drive signal in conjunction with the low frequency dither noise signals. This results in a system which allows much more dither amplitude modulation with much less output from the drive amplifiers. Because of the ability to increase amplitude modulation, gyro performance is greatly improved.

    摘要翻译: 为了减小环形激光陀螺仪的累积锁定效应,抖动电路提供低频抖动幅度调制。 通过首先开发一对互补的低频抖动噪声信号来实现这种调制。 这些低频抖动噪声信号然后被调制器用于结合低频抖动噪声信号调制抖动驱动信号。 这导致了一种系统,其允许更多的抖动幅度调制,而来自驱动放大器的输出更少。 由于增加幅度调制能力,陀螺性能大大提高。

    Mirror transducer control circuit
    6.
    发明授权
    Mirror transducer control circuit 失效
    镜面传感器控制电路

    公开(公告)号:US4933592A

    公开(公告)日:1990-06-12

    申请号:US331565

    申请日:1989-03-30

    申请人: Lloyd W. Priddy

    发明人: Lloyd W. Priddy

    摘要: A drive assembly and control circuit for a mirror assembly. Two piezoelectric discs are mounted on a diaphragm which is centrally connected to the mirror to move it. The drive circuit includes a source and first and second control means responsive to first and second control input signals to change the potential across the piezoelectric discs.

    摘要翻译: 用于镜组件的驱动组件和控制电路。 两个压电盘安装在隔膜上,隔膜中心连接到镜子上以使其移动。 驱动电路包括源和第一和第二控制装置,其响应于第一和第二控制输入信号来改变横跨压电盘的电位。