酒罐液位测控系统设计

《酒罐液位测控系统设计》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、西南交通大学硕士学位论文酒罐液位测控系统设计姓名：郝小猛申请学位级别：硕士专业：机械电子工程指导教师：周伦20081201西南交通大学硕士研究生学位论文第Ⅱ页AbstractWinlthecontinuousdevelopmentofmicroelectronictechnology，thedemandofmeasurementaccuracyandautomationdegreeofliquidlevel,especiallythemeasurementofliquidlevelintheenvironmentofhigh-temperature，highpressure，strong

2、acidorstrongalkali，notonlythesufficientaccuracymustbeassured,butthesafetyandreliabilitymustbepaidmoreattention．Thisthesis—theDesignofTanksLiquidLevelMeasurementandControlSystemisputforwardonthebasisofthisbackground．p‘First，methodsofmeasuringthetankliquidincurrentdaysareintroduced．Aimingatthefault

3、ssuchasthelowmeasurementaccuracy，lowreliability，poormaintainabilityandnonreal-time，etc，afeasibleschemeisbroughtup．Thewholetanksliquidlevelmeasurementandcontrolsystemisdividedintofourmodules，whichareexpoundedrespectivelyinseparatechaptersandsections．Thefocuspointofthethesisisthedesignofweighingsen

4、sor．Inamodemautomaticdetectionsystem，iftherearenosensors，variousparametersofeachpartintheprocessofproductionwouldnotbemonitoredorcontrolled,t11eautomaticcontrolwouldnotbeachievedeither．Sothedesignofsensorisespeciallyimportant．Thedesignprocessofweighingsensorisdiscussedindetailinthethesis．Hardware

5、designofthewinetankslevelincludesOP07DifferentialAmplifier,ICL7135AnalogtoDigitalConversionCircuit,ISPDownloadCircuitandMCUExpandingcircuits．Eachcircuitisofhighreliabilityandconvenientformaintenanceforusingmodulardesign．Thepartofthepowersupplydesign．Becauseinthestablepowerdesign,stablepowerisneed

6、edinallkindsoflCinsensorbridgecircuit,AmplifiercircuitandA／Dconvenercircuit,thevoltageisdifferent，interferencemustbeavoidedaspossible，andpositiveandnegativepowerisneededinsomeIC．Inresponsetotheserequests，practicalstablepowerisdesigned．Modulesdesignisusedinthepartoftheapplicationsoftware，dividedin

7、toeightmodules．SuchastheA／Dconversionprogram，I／Oconversionprogram，Human-Computerinterfaceprogram，alarmlevelsettingprogram，reduction西南交通大学硕士研究生学位论文第m页program，theweightoftankssettingprogram，zeroclearingandresetprogram，se