...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE sensors journal >Quantitative Analysis Method of Error Sources in Magnetohydrodynamic Angular Rate Sensor for Structure Optimization
【24h】

Quantitative Analysis Method of Error Sources in Magnetohydrodynamic Angular Rate Sensor for Structure Optimization

机译：磁流体动力角速度传感器误差源的定量分析方法

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A comprehensive study on the error analysis of magnetohydrodynamic (MHD) angular rate sensor (ARS) is essential for structure optimization to reduce its tracking error and expand the bandwidth at low frequency. Against the error sources in the MHD ARS, secondary flow, and induced magnetic field, this paper presents a quantitative analysis method to study the optimization of structural parameters. Stream function is introduced to help giving analysis of secondary flow. Two models with and without induced magnetic field are utilized for comparison to illustrate its influence. Error sources varying with time and frequency are simulated. Experiments of MHD ARS on frequency response functions and linearity are made to verify the effectiveness of the error analysis method. Furthermore, the optimization design of MHD ARS structural parameters is discussed. According to the simulation and experiment results, the impact of unsteady secondary flow is relatively strong in low-frequency band but not significant above 2 Hz and tends to be weakened by the imposed magnetic field. The deviation caused by the induced magnetic field is less than 0.1% when the rotation is less than 100 rad/s. Among the parameters for structural optimization, the aspect ratio should be designed as large as possible in the premise of small magnetic Reynolds number.
机译：磁流体动力学（MHD）角速率传感器（ARS）的误差分析的全面研究对于优化结构以减少其跟踪误差并扩展低频带宽至关重要。针对MHD ARS，二次流和感应磁场中的误差源，本文提出了一种定量分析方法来研究结构参数的优化。引入了流功能以帮助进行二次流分析。利用有和没有感应磁场的两个模型进行比较，以说明其影响。模拟随时间和频率变化的误差源。通过MHD ARS的频率响应函数和线性度实验，验证了误差分析方法的有效性。此外，还讨论了MHD ARS结构参数的优化设计。根据仿真和实验结果，不稳定的二次流的影响在低频范围内相对较强，但在2 Hz以上时影响不明显，并且往往会由于施加的磁场而减弱。当旋转小于100 rad / s时，由感应磁场引起的偏差小于0.1％。在用于结构优化的参数中，应在小雷诺数的前提下将纵横比设计得尽可能大。

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