中国振动工程学会故障诊断分会“第四届全国机械设备故障诊断学术会议”将于1994年4月22～26日在杭州召开。会议内容包括:1.国内外监测诊断技术新发展;2.监测与诊断技术在工程应用中的问题;3.监测与诊断技术在机械设备可靠性、安全性、现代化管理和协同工程中的作用;4.信号处理与模式识别新方法及其应用;5.模糊逻辑、神经网络、基因算法等诊断理论的发展及 China Vibration Engineering Society Diagnostic Branch “fourth session of the National Conference on mechanical equipment fault diagnosis” will be held April 22, 1994 to April 26 in Hangzhou. The conference contents include: 1. New developments in monitoring and diagnosis technology at home and abroad; 2. Problems in monitoring and diagnosis technology in engineering applications; 3. Role of monitoring and diagnosis technologies in reliability and safety of machinery and equipment, modern management and collaborative engineering ; 4. New methods of signal processing and pattern recognition and their applications; 5. Development of diagnostic theories such as fuzzy logic, neural networks, genetic algorithms, etc.