摘要
基于VC6.0实现了对SR830锁相放大器串口数据的精确采集与监测.首先,分析了光电检测系统中常用的SR830锁相放大器的串口数据传输特点,并分析了VB等环境下使用通信控件开发采集软件的不足.其次,通过需求分析,从框架建立、图形显示、通信设计等方面,对系统结构进行了构建.最后,基于VC6.0和重叠I/O,实现了数据采集系统.结果显示,该系统实现了对SR830数据的实时精确采集、显示和事后保存、历史文件比较等功能,克服了之前软件易发生溢出错误的问题,满足了光电化学检测的需要.
The system based on VC6.0 which can precisely acquire and monitor the data generated by lock-in amplifier SR830 is designed and implemented.First,the features of data transmission between lock-in amplifier SR830 and PC via serial port were analyzed,and also the deficiency of other SR830 data acquisition systems based on VB and MSComm was presented.Second,based on requirement analysis,the system structure was built,including the framework,graphics,communications design,and so on.Finally,based on VC6.0 and overlapped I/O,the data acquisition system was implemented.The results showed that the data generated by SR830 can be accurately acquired,displayed,saved and also can be compared with the historical records by the system.The result shows that the system overcomes the overflow problem,and meets the needs of photoelectrochemical detection with high accuracy.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第1期22-27,共6页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
国家自然科学基金(61001056)
天津市自然科学基金(10JCZDJC15300)
关键词
光电化学检测
SR830
串口通信
重叠I
O
photoelectrochemical detection
SR830
serial communication
overlapped I/O
