基于四位置法旋转调制寻北仪的轴向摆动分析
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V241.62 2

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陕西省自然科学基础研究计划项目(SJ08A26),中小企业技术创新基金(08C26226102372)


Axial swing analysis based on the four-position France rotation modulation North Finder
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    摘要:

    四位置寻北法是寻北仪寻北方法中精度最高,系统组成最简单的寻北方法。无论转台台面倾斜与否,只需要一个陀螺即可完成寻北。但是在实际中,转台转轴肯定会有一定程度的摆动,这会使寻北精度大大降低。为了分析和解决这一问题,本文对转轴摆动情况下经过加速度计补偿后分别进行寻北仿真。仿真结果表明,在转轴摆动稍大的情况下,传统旋转调制寻北方法寻北误差很大,无法进行寻北;在经过加速度对摆动角进行补偿后,无论转轴摆动多么剧烈,寻北结果都没有很大波动,可以达到寻北要求。从而可以大大减小对寻北仪样机机械加工的精密程度要求,大大减小加工成本。

    Abstract:

    Four-position north-seeking method is the most accurate in the north-seeking north finder, the easiest system composed to find north. Whether turntable table tilt or not, only one gyro is needed to complete the north-seeking. In practice, however, the turntable shaft will certainly be a certain degree of swing, this causes the north-seeking accuracy greatly reduced. In order to analyze and solve this problem, in this paper, we make the north-seeking simulation in the case of shaft swing after accelerometer compensation. The Simulation results show that, Shaft wobble slightly larger, Conventional rotating modulation north-seeking method will have Great north-seeking error, it can’t be carried out. After the compensate of acceleration for the swing, no matter how severe the shaft swinging, the north-seeking results are not very great fluctuations, it can reach the north-seeking requirements. so it can greatly reduced north finder prototype machining precision, greatly reduce the processing costs.

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李险锋. 基于四位置法旋转调制寻北仪的轴向摆动分析[J]. 科学技术与工程, 2012, 12(29): .
Lixianfeng. Axial swing analysis based on the four-position France rotation modulation North Finder[J]. Science Technology and Engineering,2012,12(29).

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历史
  • 收稿日期:2012-06-21
  • 最后修改日期:2012-06-21
  • 录用日期:2012-07-05
  • 在线发布日期: 2012-09-10
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