摘要
针对工业生产、医疗以及科学研究过程中多路微弱信号检测的需求,采用FPGA并行控制实现16通道的同步采集,使用大动态范围的24位模数转换芯片和低噪声模拟调理电路获得较高的信噪比,USB高速接口的设计解决大量数据实时传输的问题,基于LabVIEW的上位机软件实现多通道数据的同步采集、传输、处理和存储。高精度硬件和虚拟仪器平台的结合,能够快速搭建检测系统,并且方便对仪器进行维护、扩展和升级。
FPGA parallel control was used to realize 16-channel synchronous acquisition as per the demand for multi-channel weak signal detection in industrial production and medical and scientific research. A high Signal to Noise Ratio （SNR）was obtained through 24-bit analog-digital converter chips with a large dynamic range and low noise processing circuits. Large amounts of data were transmitted in real time through the designed USB high-speed interfaces and the LabVIEW-based PC software was applied for synchronous multi-channel data acquisition, transmission, processing and storage. The high-precision hardware and the virtual instrument platform together have helped build detection systems and facilitated equipment maintenance,expansion and upgrading.
出处
《中国测试》
CAS
北大核心
2016年第2期67-70,共4页
China Measurement & Test
基金
国家自然科学基金(41004027)
教育部产学研用合作创新项目(OSR-02-01)
关键词
仪器仪表技术
同步采集
虚拟仪器
通用串行总线
instrument technology
synchronous acquisition
virtual instrument
universal serial bus
