基于FPGA的便携式四极杆质谱控制系统设计  

Design of Portable Quadrupole Mass Spectrometry Control System Based on FPGA

作　　者：葛卫敏 许春华 林利泉 陈家新 吴曼曼 乔佳 GE Wei-min;XU Chun-hua;LIN Li-quan;CHEN Jia-xin;WU Man-man;QIAO Jia(Guangzhou Hexin Instrument Co.,Ltd.,Guangzhou 510535,China)

机构地区：[1]广州禾信仪器股份有限公司,广东广州510535

出　　处：《质谱学报》2023年第1期87-95,共9页Journal of Chinese Mass Spectrometry Society

基　　金：广东特支持计划资助(2019BT02Z546)。

摘　　要：针对便携式仪器小型化和低功耗的研制需求,本文设计了一套便携式四极杆质谱的下位机控制系统,基于Xilinx Spartan-6系列现场可编程的门阵列(FPGA)平台进行开发,采用FPGA单一芯片替代传统多种芯片组合的繁琐架构,去掉主控电路板上原有的W5500\MCU(微控制单元芯片)\DSP(数字信号处理专用芯片)\DDR(双倍速率同步动态随机存储器)等功能芯片,将这些芯片实现的扫描、控制、采集、存储、数据处理和高速传输等功能集成于同一FPGA片内。与现有的小型化四极杆质谱控制系统比较,本系统在功能和性能不变的前提下,不仅节省了芯片成本,而且主控硬件板卡的功耗节省了约2.7 W,约为原板卡功耗的37%,主控硬件板卡的面积减小了约20 cm^(2),约为原板卡面积的10%。本研究设计的便携式四极杆质谱下位机控制系统已成功应用于便携式四极杆质谱仪中,并且针对类似的小型化仪器有着较高的技术移植性和实用价值。To meet the requirements of miniaturization and low power consumption of portable instruments,a set of lower computer control system of portable quadrupole mass spectrometry was designed.The new control system was developed based on Xilinx spartan-6 series field programmable gate array(FPGA)platform.A single FPGA chip was used to replace the cumbersome architecture of traditional multiple chip combinations.The original W5500\MCU\DSP\DDR and other functional chips on the main control circuit board were removed,and the scanning,control,acquisition,storage,data processing,high-speed transmission and other functions realized by these chips were integrated into the same FPGA chip.The control system mainly communicated with the lower computer through the upper computer.The lower computer controlled the DAC voltage to scan the quadrupole,and at the same time linked the 16 bit ADC to collect data.The collected data was processed by some columns of algorithms,and then a large amount of data was accumulated and compressed,stored in the chip.Finally,the whole spectrum data was integrated according to the frame format and uploaded to the upper computer for displaying.The lower computer control system also integrated tuning control,feedback control,high voltage control and other functional modules.The difficulty in the design of the whole system lied in the high utilization of chip resources,which required a reasonable allocation of various chip resources and a balance in performance,speed and area.Compared with the existing miniaturized quadrupole mass spectrometry control system,the new control system not only saved the chip cost on the premise of unchanged function and performance,but also saved about 2.7 W in the power consumption of the master hardware board,which was about 37%of the power consumption of the original board,and reduced about 20 cm^(2) in the area of the master hardware board,which was about 10%of the area of the original board.The performance of the portable quadrupole mass spectrometer lower computer con

关 键 词：便携 四极杆 质谱 现场可编程的门阵列(FPGA) 

分 类 号：O657.63[理学—分析化学]