基于LabVIEW和USB接口数据采集器的设计

摘要

For engineering measurement for data acquisition device's actual need, this paper used LabVIEW graphical development software, high-precision and high-speed data acquisition device MAX197, AT89C52 microcontroller and USB control chip CH372,achieved the 8 channels 12 -bit data acquisition, 1 channel 8 -bit D/A output. And it displays the temperature detected, A/D maximum sampling frequency can be 100 kHz. This data collector has the high performance-to-price ratio,it can be applied widely.%针对工程测量对数据采集器的实际需要,采用LabVIEW图形化开发软件、高精度高速度的MAX197数据采器、AT89C52单片机和CH372 USB控制芯片,实现8路12位数据采集、1路8位D/A输出,同时具有温度检测显示功能,A/D最高采样频率可达100 kHz.该数据采集器具有较高的性价比,可以推广应用.