基于LabVIEW平台的数据采集系统的研究

Data acquisition system based on LabVIEW platform

主要研制了基于LabVIEW(一种可视化图形编程语言)平台数据采集系统的硬件部分,即数据采集与控制系统。本系统包括信号的选择、程控放大、滤渡、限波及A/D与D/A等,具有8路低频信号的选择、8种倍数的程控放大、1000Hz低通滤波、50Hz工频陷波、及A/D与D/A转换等功能。

This paper introduces the hardware of data acquisition system based on LabVIEW platform, i.e. the system for data acquisition and control. The system is composed of the units for signal selection, programmable magnification, filtration, restriction, and A/D and D/A conversion circuits. With the system, the following can be available including eight-channel low-frequency signals, eight options on programmable magnification, 1000Hz low-pass filter, 50Hz power-frequency trap, and A/D and D/A conversion.