两次步进预置北限幅设计

郭晓松; 戴宇佳; 谭立龙; 周召发

doi:10.3788/OPE.20142212.3258

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两次步进预置北限幅设计

微纳技术与精密机械 | 更新时间：2020-08-13

- 两次步进预置北限幅设计
- Design of twice stepped limiting program by presetting on north
- 光学精密工程 2014年22卷第12期页码：3258-3263
- 作者机构：
  
  西安高技术研究所,陕西西安,710025
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.41174162)()
- DOI：10.3788/OPE.20142212.3258
  中图分类号： U666.123;V241.5
- 收稿日期：2014-03-02，
  
  修回日期：2014-04-03，
  
  纸质出版日期：2014-12-25
- 稿件说明：
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郭晓松, 戴宇佳, 谭立龙等. 两次步进预置北限幅设计[J]. 光学精密工程, 2014,22(12): 3258-3263

GUO Xiao-song, DAI Yu-jia, TAN Li-long etc. Design of twice stepped limiting program by presetting on north[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3258-3263
郭晓松, 戴宇佳, 谭立龙等. 两次步进预置北限幅设计[J]. 光学精密工程, 2014,22(12): 3258-3263 DOI： 10.3788/OPE.20142212.3258.

GUO Xiao-song, DAI Yu-jia, TAN Li-long etc. Design of twice stepped limiting program by presetting on north[J]. Editorial Office of Optics and Precision Engineering, 2014,22(12): 3258-3263 DOI： 10.3788/OPE.20142212.3258.

摘要

针对陀螺经纬仪存在限幅效率低的工程问题

设计了一种两次步进预置北限幅方案.介绍了传统步进限幅方法原理

分析了陀螺摆动平衡位与静摆零位的关系.将传统步进限幅法中的静摆零位跟踪更改为平衡位跟踪

通过两次步进使陀螺主轴摆动迅速限幅并以小摆角在真北附近运动.推导了两次步进转动角度及时刻的数学公式

分析了误差因素

并针对不同的摆幅和悬挂带扭转系数与陀螺力矩系数的比值进行了仿真运算.采用该方法改进了一个陀螺经纬仪的限幅

实验结果表明

该方法能在一个陀螺不跟踪摆动周期内完成限幅

限幅精度达到1'.提出的限幅方法保留了传统步进限幅法不需要增加系统硬件的优点;提高了限幅效率

满足工程应用对寻北时间和精度的要求.

Abstract

A twice stepped limiting program by presetting on north was designed to improve the efficiency of limiting process of a gyrotheodolite. The principle of traditional stepped limiting was introduced

and the relationship of the swing balance and the zero position of gyrotheodolite was analyzed. Then

the traditional program of zero position following was redesigned to a balance position following now

so that the gyro could quickly limit the swing of the gyro and allow it to campaign with a small swing near north through stepping twice. The mathematical formulas for two stepping angles and time were derived

the error factors on the limiting effect were analyzed and the different swing ranges and the coefficient ratios of suspensory torsions to gyro torques were simulated. Finally

the program was applied to a pendulous gyroscope. The theory and experiment results show that the limiting is implemented in an un-following gyro precession circle with a limiting precision of 1'. The program proposed reaches the precision index and time demand of north-finding without adding any software

and improves the efficiency of limiting.

关键词

Keywords

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DMT. Operator’s Guide GYROMAT 2000.

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步进快速限幅摆式陀螺寻北仪

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