四极质谱数据采集控制技术的设计及FPGA的实现  

Data acquisition design and FPGA implementation in quadrupole mass spectrometry

作　　者：高印寒[1] 吴保军[2] 江游[2] 方向[3] 

机构地区：[1]吉林大学测试科学实验中心,长春130022 [2]吉林大学仪器科学与电气工程学院,长春130022 [3]中国计量科学研究院,北京100013

出　　处：《吉林大学学报（工学版）》2009年第S1期206-209,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金："十五"国家科技攻关计划项目(2004BA210A04)

摘　　要：设计了一种四极质谱的数据采集与存储缓冲控制逻辑。该设计基于预读取和分时复用技术能实现同时存储读取,采用现场可编程门阵列(FPGA)控制SRAM存储器实现高速大容量的先进先出存储器(Frist in First out,FIFO),研制出结构简单的数据采集控制系统。该系统实现了1 M*16位FIFO缓冲存储和20 Mbps同时读写,并应用在四极杆质谱和四极离子阱质谱仪中,缩短了单次质谱分析的扫描时间。A design method of data acquisition and data storage buffer control logic in the quadrupole mass spectrometry was proposed.Based on pre-reading and time multiplexing,field programmable gate arrays(FPGA) was designed to control SRAM memory to realize the high-speed high-capacity FIFO memory(first in first out,FIFO).Data acquisition and storage buffer control logic system was designed to short the one-time scanning time.Two million bytes FIFO buffer storage and 50 ns access time of simultaneous read and write were realized by data acquisition control system.The data acquisition and storage buffer system was used on the quadrupole mass spectrometry and quadrupole ion trap mass spectrometry to reduce the scanning time of single MS analysis.

关 键 词：仪器仪表技术 四极杆质谱 数据采集 FPGA FIFO 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]