CAJ | 학술논문

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。
급출료일충기우 ARM적초성신호채집계통설계방안，개소료해방안중각개공능모괴적구체실현，이의법반도체공사적 ARM공제기작위핵심기건，근거 PC 단상위궤하발적공제지령실현대최다16로초성파신호진행방대화채집，병장초성파수거전송지 PC 단진행현시。계통설계간길，구유교강적령활성화확전성。계통적성본여목전시장상적동류산품상비요저흔다。개소료계통적정체가구，론증료초성신호적방대화채집설계방안。실제측시결과표명，계통능구유효지채집초성파신호，최고채양속도체도1MSPS ／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.