抵肩力测量及其统计分析

Measurement and Statistical Analysis on Shoulder force

该文介绍了一种双剪切梁式应变测力传感器测量抵肩力的系统组成，在对测得的原始抵肩力信号分析的基础上，建立了加速度修正模型，并给出了加速度修正方法，根据理论分析确定了抵肩力信号的滤波截止频率。文中定性地解释了经处理后的抵肩力信号的变化规律。在能代表正常范围内中国射手的典型体格的大样本统计实验的基础上，给出了符合中国人体质特征的抵肩力变化规律。

In this paper, a shoulder force measurement system is introduced, using a new type of double shearbeam strain gauge transducer to measure the shoulder force resulted from the interaction between shooter and weapon. Based on the analysis of the firsthand shoulder force signals, method of acceleration modification is given and the basis is provided for selecting the cut off frequencies of filtering the shoulder force signals. According to a large amount of experiments and statistical analysis, the variation patterns of the shoulder forces with the shooter’s physique characteristics are attempted to put forward.