首页> 外文会议>MEMS/MOEMS Components and Their Applications III >The Effects of Collateral Modes on MEMS Gyro Bias
【24h】

The Effects of Collateral Modes on MEMS Gyro Bias

机译:抵押方式对MEMS陀螺仪偏置的影响

获取原文
获取原文并翻译 | 示例

摘要

MEMS gyros are often approximated as coupled, dual mode, resonant devices that transfer energy between two mechanical modes when subjected to rotational rate. These approximations are two degree-of-freedom (DOF) analyses with a mode-to-mode coupling described by Coriolis, elastic, and damping cross terms. In practice, MEMS gyros often exhibit unused, collateral modes with resonant frequencies close to the gyro's two operational modes. These additional modes provide mechanisms for the transfer of energy that are independent of rotational rate and, as a result, can generate errors in the gyro output. The purpose of this paper is to show the effects that collateral modes have on the bias of coupled-mode rate gyros. In this paper, the conventional 2 DOF analysis is extended into a three DOF model that includes one collateral mode. It is shown that the 3 DOF model is able to predict bias errors where the 2 DOF approach does not.
机译:MEMS陀螺仪通常近似为耦合双模谐振设备,当受到转速影响时,它们会在两种机械模式之间传递能量。这些近似值是两个自由度(DOF)分析,具有科里奥利描述的模态耦合,弹性和阻尼交叉项。实际上,MEMS陀螺仪通常会显示出未使用的附带模式,其共振频率接近陀螺仪的两种操作模式。这些附加模式提供了与转速无关的能量传输机制,因此,可能在陀螺仪输出中产生误差。本文的目的是显示抵押模式对耦合模式速率陀螺仪偏置的影响。在本文中,传统的2自由度分析扩展为包括一个抵押模式的3自由度模型。结果表明,3自由度模型能够预测2自由度方法无法实现的偏差误差。

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