用于纳米通道单分子检测的数据采集系统的设计与实现  

Design of Data Acquisition System for Nanopore Single-molecule Detection

作　　者：王慧锋[1] 徐英超[1] 颜秉勇[1] 

机构地区：[1]华东理工大学信息科学与工程学院,上海200237

出　　处：《计算机测量与控制》2015年第1期224-226,230,共4页Computer Measurement &Control

基　　金：国家重大仪器专项(21327807)

摘　　要：针对纳米通道单分子检测系统的信号特点和对数据采集的采样精度、采样速率及实时性等要求,设计并实现了基于FPGA和USB2.0接口的数据采集系统;该系统以FPGA作为控制核心,包括数据采集模块、电压输出模块和USB接口电路模块;通过USB2.0接口与计算机连接,实现数据的实时采样和参数的在线配置;此外本系统还采取了低噪声设计;经过相关试验表明,该系统引入的噪声在1mV内,能够稳定进行数据采集,且采集信号与电压输出信号同步传输,证明该系统能够满足纳米通道单分子检测系统对数据采集的要求。A data acquisition system based on the FPGA and USB2.0 technology is designed for the nanopore single-molecule detection according to the requirement of the nanopore single-molecule detection system.This system linking pre-amplifier and computer includes data acquisition module,voltage output module and USB interface circuit module,realizing the data real-time sampling and parameters of online configuration.In addition,this system is low-noise design.Tests show that this system is able to acquire data stably,and the noise is controlled with in 1 mV.This system meets the acquirements of nanopore single-molecule detection and worthy of using abroad.

关 键 词：纳米通道单分子检测 数据采集 USB2.0 FPGA 低噪声 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]