介绍在立式风洞中弹箭兵器伞弹模型动态参数测量的实验方法、图像采集与处理,并采用该视频测量技术测量了两种不同的伞弹模型的扫描角和转速。实验结果显示:该实验系统测试伞弹系统的动态状态参数与外场试验基本一致,可在一定程度上满足伞弹系统实验要求;另外如果转速曲线具有较稳定的周期性变化,伞弹系统就会出现较好的运转稳定性。

This paper focuses onexperiment method, image collection and processing for measuring dynamic parameters of model of sensor fused munitions with parachute in vertical wind tunnel. The video measurement technology was used to measure scanning angle and spin rate of two different sensor fused munitions. The measurement result shows that the measured dynamic parameters of model of sensor fused munitions are identical with that achieved in field test. In certain degree, the method can satisfy the scanning angle and spin rate test requirements of sensor fused munitions. In addition, if the spin curve possesses a stable periodic change, the sensor fused munitions with parachute will possess better spin stability.