大型旋转机械是指蒸汽透平、燃气透平、水力透平、压缩机,鼓风机、发电机、泵及各种齿轮增速或减速箱,它们都是一个生产装置中最为关键的设备,对其进行状态监测和故障诊断是为了保证安全生产和提高工厂的经济效益。近年来,由于工业生产的迫切需要,机器设备诊断技术得到了迅速的发展。 50～60年代,在大型机组上一般都没有振动监控仪器,极少数有的也只是在机壳或酸承座上安装速度传感器来进行振动测量。 Large-scale rotary machines refer to steam turbines, gas turbines, hydraulic turbines, compressors, blowers, generators, pumps, and various gear accelerators or gear boxes, all of which are the most critical devices in a production plant. Status monitoring and fault diagnosis is to ensure safe production and improve the economic benefits of the factory. In recent years, due to the urgent need of industrial production, machinery and equipment diagnostic techniques have been rapidly developed. In the 1950s and 1960s, there was generally no vibration monitoring equipment on large units, and very few were simply equipped with speed sensors on the enclosure or soda housings for vibration measurements.