Through analyzing the super-heater fault diagnose expert system and discussing the expression and disposal of fault believability, a clear design structure and viable implement method are put forward.

• 摘要对过热器故障诊断专家系统进行了研究，论述了故障置信度的表达与处理，提出了一种明晰的设计结构及切实可行的实现方法。