基于周期-摆幅测量的摆式陀螺全方位快速预定向方法

doi:10.3969/j.issn.1000-1093.2015.08.012

摘要/Abstract

摘要： 为克服目前国内摆式陀螺寻北仪难以实现全方位寻北的不足，通过对其大偏北角运动规律的分析提出了一种基于周期-摆幅测量的全方位快速预定向方法，通过测量摆动周期和摆幅计算偏北角；分析了转子转速对预定向时间的影响，以及各参数误差对预定向精度的影响，并对提出的方法进行了初步试验验证。理论分析和试验结果均表明，通过降低转子转速可以有效缩短摆动周期，在65 s内实现全方位预定向，精度在5°以内，满足后续寻北过程的精度要求。为克服目前国内摆式陀螺寻北仪难以实现全方位寻北的不足，通过对其大偏北角运动规律的分析提出了一种基于周期-摆幅测量的全方位快速预定向方法，通过测量摆动周期和摆幅计算偏北角；分析了转子转速对预定向时间的影响，以及各参数误差对预定向精度的影响，并对提出的方法进行了初步试验验证。理论分析和试验结果均表明，通过降低转子转速可以有效缩短摆动周期，在65 s内实现全方位预定向，精度在5°以内，满足后续寻北过程的精度要求。

关键词: 兵器科学与技术, 摆式陀螺寻北仪, 大偏北角, 全方位寻北, 周〖JP9〗期-〖JP〗摆幅测量

Abstract: A novel omni-bearing pre-orientation method based on period-amplitude measuring is put forward through the analysis of motion characteristics of pendulous gyro north seeker in wide azimuth. The proposed method can be used to calculate the azimuth of the gyro shaft by measuring its swing period and amplitude. The effect of gyro-motor rotating rate on pre-orientation time is analyzed, the effect of pertinent parameter errors on pre-orientation accuracy is discussed, and the preliminary experiments are conducted to verify the new method. Both the theoretical and experimental results show that the swing period can be shortened by decreasing the rotating speed of the gyro-rotor, and the rapid pre-orientation can be achieved accordingly within 65 s with the accuracy of higher than 5°, which can meet the accuracy requirement of subsequent north seeking procedures.

Key words: ordnance science and technology, pendulous gyroscope north seeker, wide azimuth, omnibearing north-seeking, period-amplitude measuring

中图分类号:

TH761
U666.1

陈河，张志利，周召发，赵晓枫. 基于周期-摆幅测量的摆式陀螺全方位快速预定向方法[J]. 兵工学报, 2015, 36(8): 1458-1465.

CHEN He, ZHANG Zhi-li, ZHOU Zhao-fa, ZHAO Xiao-feng. Omni-bearing Fast Pre-orientation of Pendulous Gyroscope Based on Period-amplitude Measuring[J]. Acta Armamentarii, 2015, 36(8): 1458-1465.

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