【摘要】 研究并设计出压力容器焊缝超声波探伤专家系统ＵＩＳ．该系统可以对超声波探伤中的仪器选择、规范选择、操作方法、缺陷识别及分类定级等探伤全过程提供指导及专家咨询。系统采用多级模块结构，用Ｔｕｒｂｏ－ｐｒｏｌｏｇ语言编程，可在ＩＢＭ及其兼容机上运行，采用了产生式规则、谓词逻辑相结合的知识表达方式，深度优先、目标驱动的搜索及推理技术。更多还原

【Abstract】 An expert system(UIS)for weld ultrasonic flaw detection of pressure vessel is developed.This system can offer intelligent advice and judgement about whole inspecting process of ultrasonic testing,e.g.instruments selection,process parameters selection,oper- ation methods and defect assessment.The system adopts multi-stage modules construction and the software is programmed by the AI prolog language,which can run on a IBM and its compatible personal computer.The production rules and predicate logic are used as the main formalisms of knowledge representation.By using backtracking and depth-prefered tech- nique,a effective inference engine is developed更多还原