多源复合型弹药无损检测系统设计

Design of multi-source compound nondestructive testing system for ammunition

针对弹药内部损伤特征差别较大,难以使用一种射线源成像进行无损探伤的问题,提出了一种双焦点射线源融合成像方法和系统。介绍了系统总体结构组成和软硬件设计方案,同步控制电路对两种射线源进行集中控制和焦点切换,智能控制终端对多自由度机械操作平台全方位操控,超声波自动测距装置对焦距进行精准调整。图像采集处理软件采用基于曲波变换的自适应图像增强方法,对常规焦点和微焦点射线图像进行增强和匹配;利用缺陷图像自动识别算法实现缺陷的智能辅助识别。应用结果表明,该系统对弹药内部不同部位、不同尺寸的损伤均具有很好的成像检出效果。

Aiming at the problem that the internal damage characteristics of ammunition are quite different and it is difficult to use a ray source imaging for nondestructive testing,a dual-focus ray source fusion imaging method and system are proposed.The overall structure of the system and the design scheme of software and hardware are introduced.Synchronization control circuit centralizes the control of two kinds of ray sources and switches the focus.Intelligent control terminal controls the multi-degree-of-freedom mechanical operation platform in an all-round way,and automatic ultrasonic ranging device adjusts the focus accurately.The image acquisition and processing software adopts the self-adaptive image enhancement method based on curved wave transform to enhance and match the conventional focus and micro-focus ray images,and uses the automatic defect image recognition algorithm to realize the intelligent assistant defect recognition.The application results show that the system has a good imaging detection effect on the damage of different parts and sizes inside the ammunition.