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1.发明授权公开(公告)号：US06785003B2
公开(公告)日：2004-08-31
申请号：US09900951
申请日：2001-07-10
申请人： Natsuhiko Mizutani , Takahiro Numai
发明人： Natsuhiko Mizutani , Takahiro Numai
IPC分类号： G01C1968
摘要： A semiconductor ring laser gyro comprising two or more ring lasers, the ring lasers being optically independent of each other, is characterized in that a change in beat frequency with respect to a change in angular velocity of a first ring laser is opposite to that of a second ring laser, and angular velocity of rotation of the gyro is detected by a signal representing a difference between a first beat frequency generated by the first ring laser and a second beat frequency generated by the second ring laser.
摘要翻译： 一种包括两个或更多个环形激光器的半导体环形激光陀螺仪，环形激光器彼此光学独立，其特征在于，相对于第一环形激光器的角速度的变化，拍频的变化与 通过表示由第一环形激光器产生的第一拍频与由第二环形激光器产生的第二拍频之间的差的信号来检测陀螺仪的旋转角度旋转速度。
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公开(公告)号：US06683692B2
公开(公告)日：2004-01-27
申请号：US09886582
申请日：2001-06-21
IPC分类号： G01C1968
摘要： A ring laser gyroscope or other motion sensor is dithered at a first rate if a global positioning signal is available and/or when alignment is not being performed, and is dithered at a second rate if a global positioning signal is not available and/or when alignment is being performed. The second rate is greater than the first rate.
摘要翻译： 如果全球定位信号可用，和/或当对齐不被执行时，环形激光陀螺仪或其他运动传感器以第一速率抖动，并且如果全球定位信号不可用和/或何时可以以第二速率抖动 正在执行对齐。 第二个比率大于第一个比率。
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公开(公告)号：US06476918B1
公开(公告)日：2002-11-05
申请号：US09886570
申请日：2001-06-21
IPC分类号： G01C1968
CPC分类号： G01C19/68
摘要： A dither control system for a laser gyro having a dither motor for dithering the laser gyro through a desired angular displacement, known as the command angle, in response to a drive signal. In order to help avoid saturation of the laser gyro, the dither control system reduces the command angle by command angle reduction data when the average drive signal applied to the dither motor exceeds a maximum drive value until the command angle reduction data reaches zero. The command angle reduction value is calculated by integrating the difference between the average drive signal and the maximum drive value.
摘要翻译： 一种用于激光陀螺仪的抖动控制系统，其具有用于响应于驱动信号将激光陀螺仪抖动所需角度位移（称为指令角度）的抖动马达。 为了有助于避免激光陀螺仪的饱和，当施加到抖动电动机的平均驱动信号超过最大驱动值直到指令角度减小数据达到零时，抖动控制系统通过指令角度减小数据来减小指令角度。 通过积分平均驱动信号和最大驱动值之间的差来计算指令角度减小值。
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4.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。
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公开(公告)号：US06351311B1
公开(公告)日：2002-02-26
申请号：US09499679
申请日：2000-02-08
申请人： Takahiro Numai
发明人： Takahiro Numai
IPC分类号： G01C1968
CPC分类号： G01C19/66
摘要： A gyro includes a laser device for generating a first and second laser beams to be propagated circuitally in opposition directions. An electric signal is taken out from the laser device. A third laser beam having an oscillation frequency different from that of the first laser beam is led to enter the laser device so as to be propagated circuitally in the same direction as the first laser beam.
摘要翻译： 陀螺仪包括用于产生在对置方向上电路传播的第一和第二激光束的激光装置。 从激光装置中取出电信号。 导致具有与第一激光束的振荡频率不同的振荡频率的第三激光束进入激光装置，以便沿与第一激光束相同的方向电路传播。
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公开(公告)号：US06229615B1
公开(公告)日：2001-05-08
申请号：US09478317
申请日：2000-01-06
IPC分类号： G01C1968
CPC分类号： G01C19/68
摘要： In a ring laser gyro (RLG), the dither pick off signal is applied to a variable gain amplifier, producing an output that controls the amplitude of the motion of a dither motor connected to the gyro. A square wave is generated from the dither pick off signal and applied to a signal processor with clockwise and counterclockwise signals produced by the motion of the gyro. The signal processor controls a multiplexer to select the gain for the variable gain amplifier by counting the clockwise and counterclockwise signals produced by the gyro motion in a interval (number of whole periods of dither motion) determined by counting the square wave signal produced from the dither pick off signal.
摘要翻译： 在环形激光陀螺仪（RLG）中，抖动拾取信号被施加到可变增益放大器，产生控制连接到陀螺仪的抖动电机的运动幅度的输出。 从抖动拾取信号产生方波，并将其施加到由陀螺仪的运动产生的顺时针和逆时针信号的信号处理器。 信号处理器控制多路复用器以通过对由抖动产生的方波信号进行计数确定的间隔（抖动运动的整个周期数）中的陀螺运动产生的顺时针和逆时针信号来计算可变增益放大器的增益。 拾取信号。
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