We choose The method based on spectrum analysis of instantaneous power in the research.Harmless-diagnosis based on ultrasonic can show the fault of the the SATI visualized.

• 超声波无损检测结果可以通过显示屏实时形象地显示出转子铝条的缺陷状况（诸如：端环裂缝、铝条裂缝、铝条气泡等）。