目前,对我国冶金企业大型风机的运行状态,大都是利用简易仪器进行定期定点监测,通过人工监测和故障判断来处理相应的问题。尽管有些收到了较好的效果,但也有相当一部分效果不理想。由于故障发生的随机性,对于大型关键机组的状态监测来说,使用离线仪器具有明显的局限性。主要表? At present, the operating status of large-scale wind turbines in metallurgical enterprises in our country is mostly monitored regularly by simple instruments, and the corresponding problems are dealt with through manual monitoring and fault diagnosis. Although some have received good results, but also a considerable part of the effect is not satisfactory. Due to the random nature of the failure, the use of off-line instruments has obvious limitations for the condition monitoring of large critical units. Main table?