• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Saint Petersburg International Conference on Integrated Navigation Systems; 20060529-31; Saint Petersburg(RU) >SELF-TUNING CONTROL LOOP FOR SUPPRESSION OF QUADRATURE IN A HEMISPHERICAL RESONATOR GYRO
【24h】

SELF-TUNING CONTROL LOOP FOR SUPPRESSION OF QUADRATURE IN A HEMISPHERICAL RESONATOR GYRO

机译：半球形谐振陀螺仪的正交抑制自调谐控制环

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To assure normal work of NRG there is a control loop in it's circuit, that supports phase balance in two information channels for radial motion of resonator's brim. Appearing phase shift is called quadrature. Information in each of the channels is calculated as a linear combination of displacements of four points on the brim, that are spaced 90 degree apart. Displacements of one pair of opposite points are taken with plus sign and of the others two points with minus. The group of four points of one channel is turned by 45 degree about group of points of the another channel. The phase balance of received signals corresponds to the vibrations of the resonator in the form of standing wave. The phase shift indicates the appearance of running wave. Phase shift appears when there are standing waves of different frequencies with different orientation. This phase shift can be removed if we create artificially necessary frequency diversity. The frequency diversity is created by voltage supply of groups of each four control electrodes. For control four groups of control electrodes are used. Groups are turned relative to each other by 22.5 degree. Such control scheme can be regarded as the traditional one. In this presentation a version of control scheme is proposed in which signals compensating frequency diversity are added to traditional control signal. Compensating signals are calculated by means of the integration of control signals multiplied by some trigonometry functions of angle of wave orientation. In this case the level of dynamical errors appearing in traditional scheme when wave orientation in resonator is changed can be decreased significantly. Tests on real system have proved efficiency of proposed control loop.
机译：为了确保NRG正常工作，在其电路中有一个控制回路，该回路支持两个信息通道中的相位平衡，以使谐振器帽沿径向运动。出现相移称为正交。将每个通道中的信息计算为帽沿上四个点的位移的线性组合，这些四个点的间距为90度。一对相对点的位移用加号表示，而另两点的位移用减号表示。一个通道的四个点的组围绕另一个通道的点的组旋转45度。接收信号的相位平衡对应于驻波形式的谐振器的振动。相移指示行波的出现。当存在不同方向的不同频率的驻波时，就会出现相移。如果我们人为地创建必要的频率分集，则可以消除此相移。频率分集由每个四个控制电极的组的电压供应产生。为了控制，使用四组控制电极。组相对彼此旋转22.5度。这种控制方案可以看作是传统的方案。在本演示中，提出了一种控制方案的版本，其中将补偿频率分集的信号添加到传统控制信号中。补偿信号通过控制信号的积分乘以波方位角的某些三角函数来计算。在这种情况下，当谐振器中的波向改变时，传统方案中出现的动态误差水平可以大大降低。在实际系统上的测试证明了所提出的控制回路的有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号