资源描述:
《测控技术与仪器 毕业论文范文——容柵式扭矩传感器测试系统设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、容柵式扭矩传感器测试系统设计摘要容栅式扭矩传感器测试系统是随着工程和测试技术的发展而兴起的一种新型的测量手段,本课题所要设计的系统主要用来测试动力轴或负载轴所受的扭矩和其转速。在传感器测试系统中,扭矩测量是本系统的核心部分,也是难点部分。本文结合了脉宽调制电路、低通滤波电路、数据采集系统和实时显示系统等相关知识,对扭矩传感器测试系统进行深入的研究和设计。容栅传感器具有结构简洁明了、分辨力高、抗干扰能力强、动态响应快和旋转部件上无需引线输出等优点,因此广泛应用于汽车、轮船等动力轴或负载轴的扭矩和转速测试系统中,具有重大的显示意义和广泛的市场前景。基于扭矩测试系统可通过容栅电容的周期性变化规
2、律,然后利用脉宽调制电路测量电容相位差,来完成转速和扭矩的测量难题。在设计过程中,重点研究了容栅电容的结构设计方法、容栅传感器结构设计、脉宽调制电路设计、低通滤波电路设计及容栅电容变化规律等等,通过Protel99SE设计脉宽调制电路和滤波电路的原理图和PCB图,最后对栅格数的细分、容栅的加工和安装误差、电磁干扰等等相关方面进行相关的讨论,验证容栅扭矩、转速传感技术完全可以应用到汽车、轮船等动力轴或负载轴的扭矩、转速测试。关键词:脉宽调制,低通滤波,数据采集,扭矩,转速第40页共38页CapacitivesensorstorqueTestSystemDesignAbstract:Capa
3、citivetypetorquesensortestsystem,withtheengineeringandtestingtechnologydevelopmentandtheriseofanewmeansofmeasurement,Thetopicstobedesignedmainlytotestthedynamicaxialloadorsufferedaxisofitsspeedandtorque.Thesensortestsystem,thetorquemeasurementsystemisacorecomponentisdifficultpart.Bycombiningpulse
4、-widthmodulationcircuit,alowpassfiltercircuit,dataacquisitionsystemsandreal-timesystems,andotherrelatedknowledge,oftorquesensortestsystemforin-depthresearchanddesign.Capacitivesensorswithstructuralsimplicity,highresolution,anti-interferencecapability.DynamicResponseExpressandtherotatingcomponents
5、ontheexportofleadwithoutmeritandthereforewidelyusedinautomobiles,theferryordynamicaxialloadaxistorqueandspeedtestsystem,Theshowisofgreatsignificanceandbroadmarketprospects.Basedonthetorquetestingsystemcapacitythroughthegatecapacitanceofthecyclicalchangesinthelaw,andthenusingthePWMcircuitcapacitan
6、cemeasurementphasedifferenceandtoaccomplishthespeedandtorquemeasurementproblems.Inthedesignprocess,focusoncapacitygatecapacitanceofthestructuredesign,capacitivesensordesign,PWMcircuitdesign,low-passfiltercircuitdesignandhighgatecapacitancechanges,etc.,Protel99SEthroughdesignPWMcircuitandfiltercir
7、cuitschematicandPCBmapFinally,thenumberofsub-grid,thegridcapacityandtheinstallationerrorprocessing,electromagneticinterference,andsoonrelevantaspectsrelatedtothediscussion,Verificationofcapacitivetorque,speedsensingtec