基于單片機控制的高精度電荷校準儀的設計.pdf

1、中北大學碩士學位論文基于單片機控制的高精度電荷校準儀的設計姓名：李博申請學位級別：碩士專業(yè)：精密儀器及機械指導教師：祖靜20080529中北大學學位論文ABSTRACTThetheoryanditsdesignsofhardwareandsoftwareofachargecalibratorwhichusedinthecalibrationsystemofpiezoelectricitysensorisbeingdiscussedmos

2、tlyinthisarticleAfterthat，accordingtothedevelopmentorderofthechargecalibrator，wedivideourworkintothefollowingparts：firstly，itstheorydiscussinganddemonstratingpart，herewebringforwardtheoveralldesignofthechargecalibrator：s

3、econdly，webringforwarditsactualhardwarecircuitandsoftwaredesignwhichwehavedoneintherealizationofthechargecalibrator：atlast，it’Sanalysisoftheerrorandexperimentpart，namely，wevalidatethedesignhereThebasicfundamentalofthisch

4、argecalibratoris：ittakesthe89C51singlechipascoreofcontrol，andadoptsthedirectdigitalsynthesistheoryinthedesignTherealizationofDDSisthekeypartofthisdesigns，itismostlyembodiedinthedesignofhardwarecircuitHere，weusedalargenum

5、berofintegratecircuitwhichembodiedintherealizationoffrequencysynthesize，wavegenerate，lowpassdesignandthecontroloffrequencyandamplitudeofwaveInthelastpart，weanalysetheerrorofthischargecalibrator，inaddition，wedomanyexperim

6、entstovalidatethefunctionandperformanceofthischargecalibrator，andcometoaconclusionthatthedesignofthischargecalibratoriscompletelysatisfiedwiththeneedofexperimentsKeywords：ChargeCalibrator，WaveformGenerator，DirectDigitalS