Summarizes the achievements up to the minute in the sensor fault diagnoses field in recent years, and makes deeply study on the two basic diagnose methods.

• 论文总结了近年来传感器故障诊断领域的最新研究成果，对两大类基本的诊断方法进行了深入研究：应用观测器原理实现了对电厂主汽温系统传感器故障的诊断；