仪表技术与传感器
儀錶技術與傳感器
의표기술여전감기
Instrument Technique and Sensor
2015年
9期
40-43
,共4页
大功率%高精度%虚拟仪器%电子负载%恒流源%功率管
大功率%高精度%虛擬儀器%電子負載%恆流源%功率管
대공솔%고정도%허의의기%전자부재%항류원%공솔관
high-power%high-precision%virtual instrument%electronic load%constant current source%power drivers
传统的电子负载存在测试精度低、量程范围小、测试仪的智能化程度差等问题，为了克服这一不足，设计了一个大功率高精度的电子负载系统，提出了大功率和高精度进一步结合的解决方案，开发了基于虚拟仪器技术的人机交互客户端，给出了测试系统的嵌入式程序设计。基于LabView语言、单片机和MOSFET研制出的电子负载系统具有测试精度高、量程范围大、可二次开发等特点。实验结果表明，采用该设计方法设计的电子负载系统，测试精度能够达到0．1％，量程范围为0～240 A，有效地实现了系统的大功率和高精度。
傳統的電子負載存在測試精度低、量程範圍小、測試儀的智能化程度差等問題，為瞭剋服這一不足，設計瞭一箇大功率高精度的電子負載繫統，提齣瞭大功率和高精度進一步結閤的解決方案，開髮瞭基于虛擬儀器技術的人機交互客戶耑，給齣瞭測試繫統的嵌入式程序設計。基于LabView語言、單片機和MOSFET研製齣的電子負載繫統具有測試精度高、量程範圍大、可二次開髮等特點。實驗結果錶明，採用該設計方法設計的電子負載繫統，測試精度能夠達到0．1％，量程範圍為0～240 A，有效地實現瞭繫統的大功率和高精度。
전통적전자부재존재측시정도저、량정범위소、측시의적지능화정도차등문제，위료극복저일불족，설계료일개대공솔고정도적전자부재계통，제출료대공솔화고정도진일보결합적해결방안，개발료기우허의의기기술적인궤교호객호단，급출료측시계통적감입식정서설계。기우LabView어언、단편궤화MOSFET연제출적전자부재계통구유측시정도고、량정범위대、가이차개발등특점。실험결과표명，채용해설계방법설계적전자부재계통，측시정도능구체도0．1％，량정범위위0～240 A，유효지실현료계통적대공솔화고정도。
Traditional electronic load has some deficiencies such as low accuracy ,small scale range,low intelligence,etc.In order to overcome these issues ,a high-power and high-precision electronic load system was designed ,a solution for further combi-ning the high-power and the high-precision was proposed ,a man-machine interaction client-side based on virtual instrument tech-nology was developed ,and an embedded programming for the testing system was proposed .The electronic load system was designed based on LabView ,single chip microcomputer and MOSFET that ensure high testing accuracy ,large dynamic range and secondary development function .Experimental results show that the measurement accuracy of the electronic load system using our scheme can reach 0.1%with the measuring dynamic range from 0 to 240 amps and achieve high power and high precision effectively .
