质子转移反应质谱仪外围设备控制器设计  

Design of Peripheral Device Controller for Proton Transfer Reaction Mass Spectrometer

作　　者：宋浩[1] 冯成德[1] SONG Hao;FENG Chengde(School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, China)

机构地区：[1]四川大学制造科学与工程学院,四川成都610065

出　　处：《机械》2017年第3期25-30,共6页Machinery

基　　金：泸州市科技计划项目(2014CDLZ-G18)

摘　　要：为了实现对超高灵敏度质子转移反应质谱仪各组件的集中管控,利用两片串口扩展芯片GM8125把MCS51单片机的两个串口扩展成为10个,使得MCU能够同时与PC及9个外部设备进行串行通信,通过MCU的实时数据转发,实现在PC端对质子转移反应质谱系统(PTR-MS)外围设备的准确监控。现场测试表明该外围设备控制器应用于质子转移反应质谱系统中,在完成可靠的数据通信的同时,也充分满足系统对实时性的要求。To achieve the centralized control of components for the high sensitivity proton transfer reaction massspectrometer,two pieces of serial port expansion chip GM8125were employed to extend the two serial ports ofMCS51single chip microcomputer to be ten serial ports,enable MCU to communicate with PC and9externaldevices in the way of serial communication,achieved the accurate monitoring of peripheral equipment on PC forproton transfer reaction mass spectrometry system through the real-time data forwarding of MCU.The field testshowed that the peripheral device controller at the same time of completing reliable data communication,it fullymet the requirement of the system to real time when applied to the proton transfer reaction mass spectrometrysystem.

关 键 词：串行通信 串口扩展 GM8125 MCS51单片机 外围设备控制器 质子转移反应质谱 

分 类 号：TH843[机械工程—仪器科学与技术]