位于Madison的威斯康星电力公司最近采用德国的技术检查Oak Creek电厂6号机的汽轮机叶轮。根据这个技术,检查数据是由一台装在伸缩臂臂端的声发射/接收装置来收集的——类似于转子中心孔的超声波检查。该装置沿着缓慢旋转叶轮的可接近的表面移动,水垫提供了该装置和叶轮表面之间的声音传导介质。在示波仪上观察声音穿透金属的反射波,同时反射波记录在磁带上, Wisconsin Electric Company in Madison recently used German technology to inspect the turbine wheel of PM 6 in Oak Creek Power Plant. According to this technique, the test data is collected by an acoustic transmitter / receiver mounted on the arm end of the telescope - similar to an ultrasonic examination of the rotor’s center hole. The device moves along the accessible surface of the slowly rotating impeller, and the water cushion provides a sound-conducting medium between the device and the impeller surface. Observed in the oscilloscope sound waves through the metal reflection, while reflected waves recorded on the tape,