電化學傳感器測試電路設(shè)計與實現(xiàn).pdf

1、大連理工大學碩士學位論文電化學傳感器測試電路設(shè)計與實現(xiàn)姓名：杜黎申請學位級別：碩士專業(yè)：電路與系統(tǒng)指導教師：解永平20091201DesignandImplementationofElectrochemicalSensorMeasuringCircuitAbstractElectrochemicalsensorrespondstothechangeoforganismorchemistryandoutputelectricalsigna

2、lbysomedisciplineReflecttheauthenticityoftheorganismorchemistry7SchangingdisciplinedependedontheaccuracyofthemeasuringIt’SveryimportantthatmaketlighaccuracymeasuringinstrumentInelectrochemicalsensormeasuring，sometimeskin

3、eticcurrentisSOweaklikenAlevel，evenmuchsmallerinmeasuringcontaminationbecauseofreactionmechanism，SOit’SimportanttodesigntheweakcurrentmeasuringcircuitNowadays，themajortechnicalmattersinweakcurrentmeasuringissignalconditi

4、oningcircuit，noiseprocessingcircuitandhowteduceexternaldisturbanceTlliSpaperresearchonweakcurrentmeasuringofelectrochemicalsensormeasuring，summarycharactersofeverycircuitbasedonanalyzingthecurrentdevelopmentsituationofwe

5、akcurrentmeasuringmethodDesignaweakcurrentmeasuringckcmtdependedonthespecialenvironmentwhichCanbeusedinportableortabletypeinstrumentmSpaperdesignstheresolutionoflOnAmeasuringcircuit似Spaperdesignsthecircuitbasedonmakingem

6、ulationaboutI—VconvertcircuitandanalyzingthepracticalsettingThispaperdesignsthepowersupplycircuitbyanalyzingtheinfluenceofripple，nlispaperdesignsthenoiseprocessingcircuitbasedonusingtargetedtreatmentonlow’frequencymeasur

7、ementforabettereffectinnoiseprocessingckcuitLast，thispaperalsodesignsthecyclicvoltammetrybasedonLahVIEWforevaluatingtheelectrochemistrysensorandrealizebvNIPXI4130，theresultcanmeettherequirementsbycomparingwithelectrochem

8、icalworkstation碭ecyclicvoltammetrydesignedinthispaperiseasytouseandstrongoperabilityWeakcurrentmeasuringcircmtisaccurateinmeasuring，largerangeandautomaticchangingmeasuringrangebasedonthecurrentvalueKeyWords：Electrochemis