现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2013年
8期
133-135
,共3页
A/D转换%嵌入式系统%ICL7135%虚拟仪器
A/D轉換%嵌入式繫統%ICL7135%虛擬儀器
A/D전환%감입식계통%ICL7135%허의의기
A/D conversion%embedded system%ICL7135%virtual instrument
为了提高直流电测量精度并简化直流电相关数据采集和处理的流程,设计了一种基于4位半BCD输出的A/D转换直流电测量虚拟仪器.该仪器测量采用了具有双积A/D转化的ICL7135芯片完成直流电数据采集,采用ARM9嵌入式芯片和Linux+Qt/E系统进行数据处理和显示.软件部分采用模块化设计,可以对数据进行多种计算机处理.该系统抗工频干扰性能好,测量精度高,接口丰富,系统应用方便,软件功能强大.相关的实验取得了预期良好的效果.
為瞭提高直流電測量精度併簡化直流電相關數據採集和處理的流程,設計瞭一種基于4位半BCD輸齣的A/D轉換直流電測量虛擬儀器.該儀器測量採用瞭具有雙積A/D轉化的ICL7135芯片完成直流電數據採集,採用ARM9嵌入式芯片和Linux+Qt/E繫統進行數據處理和顯示.軟件部分採用模塊化設計,可以對數據進行多種計算機處理.該繫統抗工頻榦擾性能好,測量精度高,接口豐富,繫統應用方便,軟件功能彊大.相關的實驗取得瞭預期良好的效果.
위료제고직류전측량정도병간화직류전상관수거채집화처리적류정,설계료일충기우4위반BCD수출적A/D전환직류전측량허의의기.해의기측량채용료구유쌍적A/D전화적ICL7135심편완성직류전수거채집,채용ARM9감입식심편화Linux+Qt/E계통진행수거처리화현시.연건부분채용모괴화설계,가이대수거진행다충계산궤처리.해계통항공빈간우성능호,측량정도고,접구봉부,계통응용방편,연건공능강대.상관적실험취득료예기량호적효과.
A type of virtue instrument of A/D conversion DC measurement based on 4.5?bit BCD output was designed,so as to improve current measurement accuracy,and simplify the data acquisition and processing relative to DC. The ICL7135 chip with A/D conversion function is used to achieve DC data acquisition. The graphic user interface is Qt/E based on embedded linux. ARM9 embedded chip and Linux+Qt/E system are adopted for data processing and display. In software section,the modu?lariztion disgn is used for computer processing of data. The system has the advantages of strong anti work frequency interference performance,high measuring accuracy,rich interface,convenient application and great software function.
