【求助】请问超声波中的UE是什么意思？

UE应该是应该是United Electric Controls的简写吧？

因为标准中有部分超声波检测的内容，刚才在网上查到一种“UE超声波检漏仪”。似乎跟楼上说的不太相关。难道是超声波专用术语？

Ultrasonic elastography ?

最好附上一段文字,根据上下文才好判定.

比如：The cylinder wall shall be examined using UE transducers capable of detecting the specified calibration
notches. The examination shall cover longitudinal defects in both circumferential directions (clockwise and
anti-clockwise) and transverse defects in both longitudinal directions (forward and backward) and consider
these defects to be located on the internal and external surfaces.

还有有的图示中出现了UE signal trace from calibration specimen wall