抄録
The authors have studied the applicability of the AE technique for detection of abnormalities in sliding bearings in a hydraulic power generator. The results of the experiment revealed that the AE method is effective for identifying the status of the lubricant film of sliding bearings with a superior sensitivity as compared to other kinds of diagnosis techniques. Furthermore, the integrity of the sliding bearings can be evaluated through definition of the detected AE signals as the amount of characteristics.