固体在塑性变形或损伤时,会释放所贮存的能量,而发出弹性波,这种现象称为声发射,简称AE。AE的应用研究已经在材料研究、裂纹检测、焊接管理、设备监控、地热、地震监测以及半导体制造行业中均取得了可喜的成果。本文介绍声发射方法用于解决轧钢机轧辊滑动轴承在线诊断技术、基础实验数据分析以及日立研究所研制的监测装置。 Solid in the plastic deformation or damage, it will release the stored energy, and send elastic waves, a phenomenon called acoustic emission, referred to as AE. Applied Research has achieved gratifying results in materials research, crack testing, welding management, equipment monitoring, geothermal, seismic monitoring and semiconductor manufacturing. This article describes the acoustic emission method used to solve rolling mill roller bearings on-line diagnostic technology, basic experimental data analysis and Hitachi Institute developed monitoring device.