区截测速系统校准及测量不确定度的评定方法

The Assessment Method of Zone-block Velocity Measuring System's Calibration and Measuring Uncertainty

针对现有区截测速系统不确定度的评定方法没有考虑被校系统动态特性的问题,基于统计学原理分别研究了影响区截测速系统速度测量不确定度各因素的评定方法,建立了区截测速系统速度测量不确定度的评定模型。选用外弹道飞行特性优良的某型"标准"弹道枪为速度源进行多发校准实验,采用上述不确定度的评定模型对实验数据进行分析,获得了被校区截测速系统速度测量不确定度的值,说明该评定模型具有一定的工程意义。

In view of the problems of present evaluation methods of zone-block velocity measuring system that not considering dynamic characteristics of calibrated system,assessment method of factors which affect speed measuring uncertainty were respectively researched and the system＇s velocity measuring uncertainty assessment model was established based on statistical principle. Calibration experiments were carried out by choosing certain type of＂standard＂ballistic gun of good exterior ballistic flight characteristics as the source of speed. Based on above assessment model,the experimental data was analyzed,and the chosen zone-block velocity measuring system＇s measurement uncertainty value was obtained,which illustrates the engineering significance of this assessment model.