Design of Ultrasonic Phased Array Inspection System Based on AD9273
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摘要: 提出了一种基于AD9273的高集成度超声相控阵检测系统设计方案。在传统超声相控阵检测系统的基础上，利用新型高集成度芯片AD9273和HV748完成32通道高压发射电路和接收采集电路设计；采用FPGA子系统结合ARM平台的方式构成系统数字信号处理的核心；采用数字正交包络检波技术完成接收波束成形。系统满足探伤的实时、高速的要求。系统在小型化和数字化方面有显著提高，可为便携式超声相控阵检测系统设计奠定基础。Abstract: This paper presents a highly integrated ultrasonic phased array inspection system based on AD9273. The system is designed based on traditional ultrasound phased array inspection system. In the system, some new and highly integrated chips, such as AD9273 and HV748, are used to complete 32-channel high-voltage transmitter and receiver acquisition circuit, FPGA subsystem and ARM platform are used to constitute the core of digital signal processing part, and digital quadrature envelope detector is used to complete the receiver beamforming. The system meets the real-time, high-speed requirements of detection systems. Significant improvement appears in the systems level of miniaturization and digitization. This solution provides the basis for Portable ultrasonic phased array inspection system.
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