多路复用器
现场可编程门阵列
计算机硬件
计算机科学
信号调节
数据转换
信号(编程语言)
模拟信号
过程(计算)
嵌入式系统
频道(广播)
数据采集
电子工程
炸薯条
工程类
多路复用
数字信号处理
电信
功率(物理)
操作系统
物理
程序设计语言
量子力学
作者
Xuanyu Meng,Hui Xin Zhang,Xiang Hong Li
出处
期刊:Advanced Materials Research
日期:2012-01-01
卷期号:433-440: 6589-6593
标识
DOI:10.4028/www.scientific.net/amr.433-440.6589
摘要
This paper reports the basic principle and implementation process of FPGA-based multi-channel analog signal acquisition module. The emphasis of the full text is the principle of Data acquisition and the system implementation process. Multi-channel data acquisition module is composed of signal conditioning circuit、multi-channel analog multiplexers、A/D conversion and the central control system. The design uses LM324 for input signal conditioning; uses AD's 16 analog input signal chip ADG706 for channel selection; uses AD's 12-bit precision A/D converter AD7492 as the core chip of acquisition module for completing the A/D conversion; uses Xilinx's programmable logic device XC2S100 as part of the core control to achieve control of each module. Under the control of the design software, this design can take advantage of FPGA control multi-channel analog switch、A/D conversion、data compilation and uploading the data to PC to store and analyze.
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