一、引言工业内窥镜技术应用于无损检测,现在已经越来越受到各工业部门的欢迎和重视,特别是近年来有了国产工业内窥镜,就更加引起广泛的关注。这是因为工业内窥镜具有极其独特的优点,它可以把人们的视距加以延长,并且能让视线随意拐弯,这是其它检测方法所无法比拟的。例如运用工业内窥镜可以伸入到庞大 I. INTRODUCTION Industrial endoscope technology used in non-destructive testing has now been more and more welcomed by all the industrial sectors and attention, especially in recent years with domestic industrial endoscope, even more widespread concern. This is because the industrial endoscope has a unique advantage that it can extend the line of sight of people, and let the eyes bend at random, which is unmatched by other detection methods. For example, the use of industrial endoscope can be extended into the huge