Laser shearographic speckle automatic detection of grain product defect detection
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摘要: 针对包覆药柱和低燃温药柱的脱黏、气泡等缺陷，目前主要通过传统人工方式进行检测，存在检测效率低、主观经验依赖性强、质量稳定性差等问题。为了实现包覆药柱和低燃温药柱的高效检测，满足常态化高强度、高密度发射形势下包覆药柱和低燃温药柱快速、批量研制需求，研发了一种基于双轴运动的激光散斑检测系统，该检测系统可完成缺陷检测、激光远程启动、伺服电机驱动、自动定位并在上位机上实现数据通讯等功能。对缺陷的检测试验结果表明，所开发的激光散斑检测系统可兼容检测多种型号的包覆药柱和低燃温药柱，检测效率高，精度高。Abstract: For the defect detection of coated grain and low burning temperature grain, such as debonding, bubbles, etc., at present, the traditional manual detection method is mainly used, which has some problems, such as low detection efficiency, strong dependence on subjective experience and poor quality stability. In order to realize the efficient detection of coated grain and low burning temperature grain, and meet the rapid and batch development requirements of coated grain and low burning temperature grain under the situation of normalized high-density emission, a laser shearographic detection system based on biaxial motion is developed. The detection system mainly completes defect detection, the remote starting of the laser, the driving of the servo motor, the automatic positioning and realizing the data communication in the terminal computer. The experimental results show that the developed laser speckle detection system can be compatible with many types of coated grain and low burning temperature grain, with high detection efficiency and high precision.
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Keywords:
- laser speckle /
- defect detection /
- PLC /
- servo drive
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