The system includes a line-focus PVDF transducer, a four-axis precise moving framework, an NI PXI bus embedded controller, an ultrasonic pulse generator/receiver and a digital oscilloscope.

• 系统由线聚焦PVDF探头、四轴精密运动平台、NI PXI总线嵌入式控制器、超声脉冲产生／接收仪以及数字记忆示波器组成。