基于ARM的超声信号采集系统  

Ultrasonic Signal Acquisition System Based on ARM

作　　者：谢友鹏[1] 韩庆邦[1] 鲍娜[1] 殷澄[1] 朱昌平[1] 

机构地区：[1]河海大学物联网学院,常州213022

出　　处：《微处理机》2015年第3期89-91,96,共4页Microprocessors

基　　金：国家自然科学基金(11274091);国家自然科学基金(11274092);河海大学中央高校基金项目(2011B11014)

摘　　要：给出了一种基于ARM的超声信号采集系统设计方案,介绍了该方案中各个功能模块的具体实现,以意法半导体公司的ARM控制器作为核心器件,根据PC端上位机下发的控制指令实现对最多16路超声波信号进行放大和采集,并将超声波数据传送至PC端进行显示。系统设计简洁,具有较强的灵活性和扩展性。系统的成本与目前市场上的同类产品相比要低很多。介绍了系统的整体架构,论证了超声信号的放大和采集设计方案。实际测试结果表明,系统能够有效地采集超声波信号,最高采样速度达到1MSPS/s。This paper presents a design of ultrasonic signal acquisition system based on ARM of the ST and designs each functional module.The system uses ARMcore processors to implement the control of a 16 channel signal amplifying and acquisition according to the commands from PC,and then to realize real -time display.The design of the system is compact,flexible and expendable.The price of the proposed device is much cheaper than those in the market.The architecture of the system is introduced as well and the amplifying and acquisition of the signals are also designed in detail.The experiment results show that the system can clearly collect the ultrasonic signal in rate of 1MSPS /s.

关 键 词：信号采集 超声波 串口 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]