公开(公告)号：US06904377B2

公开(公告)日：2005-06-07

申请号：US10390200

申请日：2003-03-17

申请人： G. Kevin Liu ,  John Mark ,  Daniel A. Tazartes

发明人： G. Kevin Liu ,  John Mark ,  Daniel A. Tazartes

IPC分类号： G01C17/38 ,  G01C19/00 ,  G01C19/56 ,  G01C21/16 ,  G01C25/00 ,  G01L1/00

CPC分类号： G01C21/16 ,  G01C25/005

摘要： System and method for measuring force-dependent gyroscopic sensitivity. A force-effect model of the effects of acceleration on the output of a gyro triad is determined. Rotation sequences are then devised to permit excitation and observation of force-effect model parameters in order to provide calibration information for these parameters. A state diagram containing the gyro triad force-effect model parameters is derived from the force-effect model, where moving from one position in the state diagram to another position indicates the gyro triad error which would occur in rotating the gyro triad according to a corresponding motion. Searching for all possible closed loop paths achievable through the state diagram, by a multiple-axes rate table with a specified number of rotations, to separate gyro triad error calibration from the accelerometer calibration. Closed loop paths having minimal lengths and exhibiting larger error sensitivity are chosen to perform error parameter calibration and reduce force-dependent gyroscopic sensitivity.

摘要翻译： 用于测量力依赖陀螺仪灵敏度的系统和方法。 确定加速度对陀螺三能体输出的影响的力效应模型。 然后设计旋转序列以允许激发和观察力效应模型参数，以便为这些参数提供校准信息。 包含陀螺三能力力 - 效应模型参数的状态图从力 - 效应模型导出，其中从状态图中的一个位置移动到另一位置指示将根据相应的旋转陀螺仪三元组发生的陀螺仪三元组误差 运动。 通过状态图可以通过具有指定转数的多轴速率表搜索所有可能的闭环路径，从加速度计校准中分离陀螺仪三元组误差校准。 选择具有最小长度和显示较大误差灵敏度的闭环路径进行误差参数校准并减小力依赖陀螺仪灵敏度。

公开(公告)号：US20050104756A1

公开(公告)日：2005-05-19

申请号：US10714199

申请日：2003-11-14

申请人： Daniel Tazartes ,  John Mark

发明人： Daniel Tazartes ,  John Mark

IPC分类号： B81C99/00 ,  H03M1/20

CPC分类号： G01C19/5719

摘要： A method of distinguishing an analog drive signal from a pickoff signal for attenuating the effect of electrical cross-coupling between the analog drive signal and the pickoff signal. The method may include receiving a periodic digital signal at a first frequency in the form of a stream of digital data values, randomly inverting at least one of the digital data values and converting the stream of digital data values to a stream of analog data values to form an analog drive signal. The method may also include driving a sensor, physically coupled to a resonant member configured to oscillate at a second frequency, using the analog drive signal and sensing changes in the movement of the resonant member detected by the sensor for producing a pickoff signal.

摘要翻译： 一种区分模拟驱动信号与传感信号的方法，用于衰减模拟驱动信号和检测信号之间的电交叉耦合的影响。 该方法可以包括以数字数据值流的形式以第一频率接收周期性数字信号，随机地反转数字数据值中的至少一个，并将数字数据流流转换为模拟数据值流到 形成模拟驱动信号。 该方法还可以包括驱动传感器，物理耦合到被配置为以第二频率振荡的谐振构件，使用模拟驱动信号并且感测由传感器检测的谐振构件的运动的变化以产生拾取信号。

公开(公告)号：US06424419B1

公开(公告)日：2002-07-23

申请号：US09628071

申请日：2000-07-28

申请人： Daniel Tazartes ,  John Mark ,  Albert V. Scappaticci ,  Michael W. Denice, Jr.

发明人： Daniel Tazartes ,  John Mark ,  Albert V. Scappaticci ,  Michael W. Denice, Jr.

IPC分类号： G01C1966

CPC分类号： G01C19/665 ,  H01S3/08 ,  H01S5/14

摘要： A system and method for controlling the cavity length of a ring laser gyroscope to properly tune the resonant wavelengths of the ring laser gyroscope during moments when experiencing sudden shocks or high g force accelerations. The system controls the position of a movable mirror in the laser cavity of the gyroscope to control the length of the laser cavity. The system measures the acceleration experienced by the laser cavity, wherein the position of the movable mirror is adjusted to counteract the effects of the acceleration on the movable mirror in a real-time response to the measured acceleration. By adjusting the position of the movable mirror, the resonant wavelengths propagating in the ring laser gyroscope will be maintained at their desired intensity and continue to lase even after experiencing this acceleration. The system may further include a control servo-loop for providing additional cavity length control in order to maintain the desired intensity of the wavelengths propagating within the gyroscope.

摘要翻译： 一种用于控制环形激光陀螺仪的腔长度以在经历突然冲击或高g力加速的时刻期间适当地调谐环形激光陀螺仪的谐振波长的系统和方法。 该系统控制在陀螺仪的激光腔中的可移动镜的位置，以控制激光腔的长度。 该系统测量激光腔经历的加速度，其中调节可移动镜的位置以抵抗对实测加速度的实时响应中的可移动镜上的加速度的影响。 通过调整可移动镜的位置，在环形激光陀螺仪中传播的谐振波长将保持在其所需的强度，并且即使在经历该加速度之后也继续变化。 该系统还可以包括用于提供附加腔长度控制的控制伺服回路，以便保持在陀螺仪内传播的所需波长的期望强度。