基于ARM的嵌入式QCM检测仪器的研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
石英晶体微天平(Quartz Crystal Microbalance,QCM)传感器可检测电极表面纳克级的质量变化和反应膜的粘弹性、溶液密度、粘度、电导率、介电常数等参数的改变。其具有高特异性、高灵敏度、响应快等特点,可广泛应用于化学、物理、生物、医学和表面科学等领域中,可以用于气体、液体的成分分析以及微质量元素的测量等。
     本课题以石英晶体微天平传感器技术为基础,采用ARM嵌入式技术、现代电子技术和与压电石英传感器技术相融合,开发出了具有灵敏度高、可选择性好、操作简便、可实时检测输出检测结果的压电石英传感器信号采集处理系统。通过测量每个通道检测池输出频率、电压、温度等的变化,来对微量元素成份或质量、浓度、粘度等进行分析、测量,并可实时输出扫描电压到检测池,实时采集检测池数据,便可进行化学、生物等精密实验之用。
     基于ARM的嵌入式QCM检测仪器主要由前端传感器检测电路、数据采集系统和数据处理系统等组成。根据前端QCM传感器振荡电路输出的信号,数据采集系统进行实时采集、控制、处理、传输。根据用户需要,可将采集数据处理后发送到LCD液晶屏实时的进行数据显示、动态曲线显示、通道之间曲线切换、采集数据实时打印、存储等功能,并可经由32位独立按键的键盘进行各种控制操作等;或将采集数据,由基于ARM7内核的处理器LPC2220处理后上传到PC机进行数据、曲线的显示、描绘、切换等。
Quartz Crystal Microbalance(QCM) sensor can sensitively detect the changes in electrode mass down to the nanogram level and the change of loading and film viscoelasticity as well as solution viscosity, density, conductivity and dielectric. It can provide properties of high specificity, sensitivity, rapid response, mini-type and simplicity. It can be used widely in chemistry, physics, biology, medicine, surface science. It is also expected to find wider applications in analyzing of gas , liquid and the detecting of tiny mass.
     This item designed the QCM signal collection system, which has the advantage of high sensitivity, selectivity, easy of using and can output the result of the measure in real-time, based on the QCM sensor and the using of the embedded technology of ARM, the modern electronic technology and the QCM. Also it can supply model for kinds of applications and provide guarantee for more develop. This apparatus has two channels. Every channel can measure the frequency, voltage, temperature of the input signal. After that, It can deal with the element, mass, thickness, conglutination and give the report. If you want to do some experiment in chemistry or physics, then you can add the DAC out to the detect pool, and of course, you can get the result of the reaction exactly.
     The embedded high precision detect instrument based on ARM, is consist of the front sensor detect unit, the gather system unit and the deal system unit. It can sample the sensor output singal,and send the data to LCD to display and curve kinds of figure,such as F-T,V-T,F-V and so on. Also it can send the data to PC, which gets across the RS232. And the PC will display the data ,curve the figure and do any other things needed.
引文
[1]D.A.Buttry,M.D.Ward.Chem.Rev.1992.92.1366.
    [2]M.ThomPoson,A.L.KIPling,W.C.Dunean- Hewitt,et al.Analyst.1991,116,881.
    [3]M.R.Deakin,D.A.Buttry.Anal.Chem.1989,61,1147A.
    [4]R.L.Bunde,E.J.Jarvi,J.J.Rosentreter.Tlata,1998,46,1273.
    [5]常浩,王琪民,张培强.石英微天平研究现状和展望[J].压电与声光,2003,(6):465-468.
    [6]R.Sehummacher.Angewandte Chemie.1990,19(4),329.
    [7]Shigeru K,HidenobuA,MitsuhiroT,etal.Immunosensors using a quartz crystal microbalance.Measurement science and Technology,2003,14(11):1582-1557.
    [8]Janshoff A,Galla H J,Steinem C.The quartz-crystal microbalance in Iife scien e.Angew.Chem.Int.Ed.2000,39:4004-4032.
    [9]O'Sullivan C K,Guilbault G G.Commercial quartz crystal microbalances-theory and applications.Biosensors&Bioelectronies.1999,14:563-670.
    [10]Syritski V,Reut J,OPikA,et al.Environmental QCM sensors coated with PolyPyrrole.Synthetic Metals,1999,102(1-3):1326-1327.
    [11]张剑锋,马希直,张优云.石英晶体微天平传感器在油品粘度中的应用研究[J],西安交通大学学报,2002,36(5):515-515.
    [12]彭军.传感器与检测技术[M].西安:西安电子电子科技大学出版社,2003.
    [13]SAUERBREY G Z.Physik.1959,155(1):206-211.
    [14]KANAZAWA K K,GORDON J G.Frequency of a Quartz Microbalance in Contact with Liquid.Anal.Chem,1985,59:99-104.
    [15]赵声衡.石英品体振荡器[M].长沙:湖南大学出版社,1997.
    [16]周立功.ARM微控制器基础与实战[M].北京:北京航空航天大学出版社,2005.
    [17]NXP公司.LPC2220 Datasheet.
    [18]Sipex公司.SP708S Datasheet.
    [19]ST公司.SST39VF1601 Datasheet.
    [20]ISSI公司.IS61LV25616AL Datasheet.
    [21]Maxim公司.MAX1167 Datasheet.
    [22]吕运朋,李海威,张全法等.基于ARM的嵌入式高精度频率计的设计[J].电子测量技术.2009,32(1):73-76.
    [23]魏钟记,刘峰,汪铭东.数字测频方法及实现[J].电子测量技术,2006,29(4):28-29.
    [24]徐成,刘彦,李仁发等.一种全同步数字频率测量方法的研究[J].电子技术应用,2004,(7):37-39.
    [25]魏西峰.全同步数字频率测量方法的研究[J].现代电子技术,2005,(12):101-105.
    [26]鲍芳,王春茹.新型单片机频率测量系统的研究[J].仪表技术与传感器,2001,(2):33-35.
    [27]汪首坤,林波涛,王军政等.自适应等精度频率测量方法与实现[J].传感技术学报,2007,(2):346-349.
    [28]谢浪清.高速等精度频率测量的研究[J].中国科技信息,2006,(15):304-305.
    [29]江玉洁,陈辰,周渭.新型频率测量方法的研究[J].仪器仪表学报,2004,25(1):30-33.
    [30]TI.SN74LV8154 Datasheet.
    [31]TI.DAC8831ICD Datasheet.
    [32]友利华高科技开发有限公司.YD-711ARMWP LCD显示屏.
    [33]Mark I.Montrose.电磁兼容的印制电路板设计[M].北京:机械工业出版社,2008.
    [34]SST公司.SST5VF080B Datashet.
    [35]周立功.ARM嵌入式系统基础教程[M].北京:北航出版社,2005.
    [36]周立功.ARM嵌入式系统软件开发实例[M].北京:北航出版社,2004.
    [37]谭浩强.C语言程序设计[M].北京:清华大学出版社,2003.
    [38][美]RiekGrehan.[美]RobertMoote.[美]IngoCyliaX许汝峰译.32位嵌入式测控系统编程M〕.北京:中国电力出版社.2001.
    [39]杜春雷.ARM体系结构与编程.清华大学出版社.2002.
    [40]王田苗.嵌入式测控统设计与实例开发[M].北:清华学出版社,2002.
    [41]李驹光等.ARM应用系统开发详解.北京:清华大学出版社,2003.[42]程国达.嵌入式系统的硬/软件协同设计研究.复旦大学博士论文.2003.[43]薛国富.石英晶体元件参数测量方法.压电晶体技术[J].1987.12(4):43-51.
    [44]顾林坪.几种阻抗计的特性和测量误差.压电晶体技术[J].1994.3:25-28.
    [45]崔新红,李东.石英晶片的电参数模型分析与试验验证.北京工业学院学报.1999.14(2):47-51.
    [46]兰军,宋千,周智敏.多通道并列数据采集系统非均匀采样校正.数据采集与处理.V01.15,No.3,Sep.2000:340-344.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700