中文摘要：

采用显微镜头、光纤传像束、高速相机相结合的拍摄方法,利用电爆炸驱动低速飞片技术和快响应热电偶测温技术,初步建立了毫米级小尺寸炸药冲击响应的测试方法,实现了对亚毫米尺度预制孔洞缺陷的实时动态观测,获得了固体炸药孔洞（直径500μm）动态塌陷过程的图像和温升历程,为开展热点形成、点火及成长过程的实验研究奠定了基础。

英文摘要：

The origin, ignition and growth of hot spot are keys to understand the shock initiation in heterogeneous explosive. An experimental method of shock behavior for millimeter-scale plastic- bonded explosives （PBX） is developed by using an electrical explosion driven low-velocity flyer, a quick-response thermocouple and a high speed and micro-scale camera,in which the camera consists of a microscope,a high speed camera and an image transmission bunch. The dynamic collapse process of the precast cavity with a diameter of 0.5 mm in PBX is captured. The physical image and temperature curve of the precast cavity in PBX are obtained during the dynamic collapse process,which may pro- vide a foundation for the hot spots experiment in PBX.