设计了超声波探头的结构，给出了详细的探头制作工艺。
The structure of the transducer was designed and the detail procedure of the manufacture was described.
并且，超声波探头的频带越宽，则用此探头可以测量到的圆管的厚度范围越大。
It is also shown that the wider the frequency bands of the transducer used, the larger the range of measurable thickness...
与传统的超声波探头相比，超声相控阵探头可以实现电子控制下的声束平移、偏转与动态聚焦。
Compared with traditional ultrasonic probe, ultrasonic phased array probe can realize transition, deflection and dynamic focusing of acoustic beam under electronic control.
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