基于LabVIEW的阵列式传感器数据采集系统

Data acquisition system based on LabVIEW for array sensors

本文介绍了以单片机进行数据采集,LabVIEW为开发平台,两者之间通过串口进行通信的多通道数据采集系统。该系统可对低频传感器信号进行采集、显示和存储。文中详细介绍了软、硬件设计方案和测试结果。

This paper describes a data acquisition and display system based on LabVIEW platform and AT89S51 Microcontroller, which communicate with each other via RS232 interface, using user-defined communication protocol to ensure communication efficiency and stability. The system adopts MAX197 A/D converter, which acquires 0～+ 10V voltage signals through 6 analog input channels with 12-bit resolution. And the MCU is programmed with Assembly Language. LabVIEW carries out the management tasks, including the data acquisition control, Serial Port Communication control, display and storage of available data. The system, which has low cost and good performance, has been tested and reflects easy operation, good stability and reliability.