基于PZT的8+8超声传感器阵列寻址接收策略及电路系统设计  

Addressing Receiving Strategy and Circuit System Design of 8+8 Ultrasonic Sensor Array Based on PZT

作　　者：宋寿鹏[1] 邵文津 SONG Shoupeng;SHAO Wenjin(Department of Instrument Science and Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学仪器科学系,江苏镇江212013

出　　处：《压电与声光》2024年第5期813-821,共9页Piezoelectrics & Acoustooptics

基　　金：国家自然基金面上项目资助(NNSFC,Grant No.52175511)。

摘　　要：超声传感器阵列寻址接收方法不同于传统的超声阵列接收机制,它可以灵活地选择阵列中接收阵元数量及分布范围,在简化电路规模的同时,可以实现阵列的变孔径接收。提出了一种基于PZT的8+8(64阵元)规模寻址激励超声阵列接收策略,设计了基于微处理器和PMOS电子开关控制的寻址接收电路,实际测试并分析了寻址接收模式下超声阵列的电气特性。采用单阵元、整行阵元、整列阵元及全部阵元接收孔径4种寻址接收模式,测试了铝和钢材试块底面回波信号,得到不同接收模式下回波信噪比的变化规律及特性。The signal-receiving method of the addressing ultrasonic transducer array differs from that of the traditional ultrasonic transducer array.The number and distribution range of receiving array elements can be flexibly selected to achieve variable receiving aperture with a simplified circuit scale.In this study,an 8+8(64 element)scale addressing excitation ultrasonic array receiving strategy based on lead zirconate titanate(PZT)is proposed,and an addressing receiving circuit based on a microprocessor and PMOS electronic switch is designed.The electrical characteristics of the ultrasonic array are tested and analyzed.The echo signals of the bottom surface of aluminum and steel blocks are tested in four addressing receiving modes:single-array element,whole-row array elements,whole-column array elements,and all array elements.

关 键 词：超声传感器阵列 寻址接收 电路 寻址激励 

分 类 号：TN710[电子电信—电路与系统] TH887[机械工程—仪器科学与技术] TB553[机械工程—精密仪器及机械]