超声换能器阵列的多路激发电路设计

A Design of Multi-route Emission Circuit of Ultrasonic Phased Array

设计了一种应用DDS技术的多路超声相控阵列激发电路,该电路可以产生任意波形的激励信号。同时还利用FPGA设计了相控阵的相位延时数字逻辑电路,利用该电路可以方便的实现高精度的相位延时。经实验室验证,该电路成功的达到了设计要求。

A multi-route emission circuit of ultrasonic phased array is designed in this paper. The DDS is applied in the circuit design. This circuit can emit any wave form exciting signal. A phase delay circuit is designed using FPGA at the same time.