PCL711B采集卡在测微仪数字化中的应用 摘要 本文根据任务书的要求设计了微位移运动的数字化测量系统。在分析模拟测量系统的设计思想和工作原理的基础上，对实验室所需的测量要求进行了合理的选择，包括种类、型号、技术参数等。为了对整个测量系统的运行进行控制，并对采集到的数据进行处理，编制了系统管理控制软件，本系统软件用Visual Basic 6.0编写控制界面，运行在Wi
ndows2000或Wi
ndows XP操作系统下，通过该软件能够显示微位移数据。 本文在对PCL711B数据采集卡进行分析的基础上，将其应用于数字化电感测微仪的数字化改造。微位移经电感测微仪检测，变换成模拟电压量，传送到PCL711B数据采集卡，用数据采集卡把模拟量转化为数字量，再用数字量在计算机上显示出来。测量软件用Visua Basic 6.0开发，通过对PCL711B数据采集卡进行一定的操作，实现包括自动定时采集数据、手动采集数据、数据存储等功能。本文阐述了系统方案设计、微位移机构测绘、PCL711B卡编程的流程分析、应用程序设计、运行效果分析等工作。 指针式电感测微仪在机械零件的误差测量、物件的厚度测量、微位移的测量等方面有广泛的应用，利用微机的软硬件资源将指针式电感测微仪改造为数字化测量系统，以便对测试结果进行读数、存储、打英以及进一步的数据分析处理，同时可制作美观廉价的虚拟仪器面板。在基于IPC的数据采集系统中采集卡是关键部件。 关键词：微位移；PCL711B；数据采集；Visual Basic 6.0 Abstract Accordi
ng to the requireme
nts, this paper desig
ns the digital measureme
nt system of micro-displaceme
nt moveme
nt. After a
nalysis the desig
n a
ndwork pri
nciple of a
nalog measureme
nt system, reaso
nable choice has do
ne o
n the requireme
nts of lab measure, i
ncludi
ng types, model, tech
nical parameters, etc. To co
ntrol the operatio
n of the measureme
nt system, a
nd to co
ntrol the collected data processi
ng, ma
nageme
nt software is made. The system uses Visual Basic 6.0 to make the co
ntrol i
nterface, ru
n
ni
ng i
n Wi
ndows2000 or Wi
ndows XP operati
ng system, a
nd achieve the fu
nctio
n of the displayi
ng micro-displaceme
nt data. This paper base o
n carryi
ng out the a
nalysis of the PCL711B data collecti
ng card,it make it have applicatio
n i
n Digilalizatio
n tra
nsformatio
n of Digital i
nductive micrometer. Micrometric displaceme
nt is detected by i
nducta
nce micrometer,tra
nsfered to simulatio
nvoltage qua
ntity,a
nd the
n tra
nsmit it to the PCL711B Data collecti
ng Card,show it o
n the PC. Measureme
nt software is developed i
n Visua Basic 6.0,accordi
ng to the operatio
ns of PCL711B Data collecti
ng Card,to achieve the fu
nctio
ns of automatic a
nd timi
ng collecti
ng data,ma
nual drive collecti
ng data,data memory etc. This paper makes a prese
ntatio
n o
n system desi
n,micro displaceme
nt mappi
ng,Flow a
nalysis of PCL711B Card’s programmi
ng,applicatio
ns desig
n,operatio
nal effect a
nalysis etc. Poi
nter type i
nductive micrometer have exte
nsive applicatio
n i
n the error of measureme
nt of mecha
nical parts, thick
ness measureme
nt of objects,measurme
nts of micro moveme
nt.etc,i
n the use of computer hardware a
nd software resources, reco
nstructio
n Poi
nter type i
nductive micrometer to Digital measuri
ng system,it makes the test result i
n the read, store,pri
nt,a
nd further a
nalysis of data more co
nve
nie
nt,at the same time,we ca
n make it Beautiful cheapvirtual i
nstrume
nt pa
nel.Base o
n the IPC data collecti
ng, data collecti
ng card is the key parts. Keywords: micro displaceme
nt, PCL711B, Data acquisitio
n, Visual Basic 6.0 目录 引言1 1微位移测量的背景、现状及将来发展2 2本课题的研究内容和要求5 3系统方案设计6 3.1方案连接草图6 3.2系统硬件设计6 3.2.1系统工作原理6 3.2.2连接电路设计7 3.2.3模拟量输入电路连接设计7 3.2.4位移传感器概述8 3.2.5数字输出电路连接9 3.2.6 PCL711B介绍10 3.2.7 PCL711B卡设置13 3.2.8指针式电感测微仪15 3.2.9机械机构15 4软件设计17 4.1 Visual Basic语言程序介绍17 4.2 LED虚拟显示器控件24 4.3主程序26 4.3.1主程序流程图26 4.3.2主程序代码27 4.3.3定时采集数据子程序的流程图32 4.3.4定时采集数据子程序的代码32 4.3.5程序调试33 5结论34 谢辞35 参考文献36