数字式电子秤设计

毕业设计（论文）题目数字式电子秤设计数字式电子秤设计数字式电子秤设计数字式电子秤设计毕业设计（论文）英文题目DesignofDigitalElectronicScales姓名__________________专业_________________________班级__________________________毕业设计（论文）共页图纸共页指导老师_______________________完成时间_______________________答辩时间_______________________辽宁工程技术大学应用技术学院年月日I摘要随着传感器技术的成熟与发展，数字式电子称已成为最普遍最普及的计量设备。传统的称重计量方法很难进行故障定位等，已无法满足连续生产中高可靠性的要求。本文的主要内容是基于电阻应变片传感器的数字式电子秤，在软硬件控制下实现智能化称重。该设计准确度高，稳定性好。电子秤因可实现技术的多种多样，成本降低到已经进入人们日常生活的地步，成为每家每户都购买得起的家用电子产品，在功能上还需进一步改进，满足更多新的需求。电子秤实现称重，智能化和开发新功能是设计研发的主要趋势。本文以单片机MCS-51系列的AT89S52集成电路为信息处理核心，提出数字式电子秤的硬软件设计方案，详细分析各单元的硬软件电路，给出了仪器电路设计与软件流程及相关电路原理图、流程图，最后介绍了产品的调试、使用和故障排除等问题。关键词：传感器；计量设备；称重；智能化；单片机IIAbstractAbstractAbstractAbstractAstheresistancestrainsensortechnologymaturationanddevelopment,digitalelectronicscalehasbecomethemostcommonmeasurementofthemostpopulardevices.Thetraditionalmethodofweightmeasurementisdifficulttofaultlocation,cannotmeetthecontinuousproductionofhighreliabilityrequirements.Themaincontentisbasedonresistancestraingaugesensordigitalelectronicscales,underthecontrolofthehardwareandsoftwareintelligentweighing.Thedesignofhighaccuracy,goodstability.Electronicscalecanberealizedduetoavarietyoftechnology,costreductiontohaveenteredpeople'sdailylives,aseveryhouseholdcanaffordtobuyhomeelectronicsproducts,thefunctionsneedtobefurtherimprovedtomeetthenewdemandformore.Electronicweighingscaleimplementation,intelligentdesignanddevelopmentofnewresearchanddevelopmentfunctionisamajortrend.Inthispaper,MCS-51seriesMCUAT89S52integratedcircuitsfortheprocessingcore,digitalelectronicscalesproposedhardwaredesign,detailedanalysisofeachunitofhardware,givesthecircuitdesignandsoftwareprocessequipment,andrelatedcircuitdiagram,processFigure,Finally,theproductofthecommissioning,useandtroubleshooting.KeyKeyKeyKeywords:words:words:words:sensors;sensors;sensors;sensors;meteringmeteringmeteringmeteringequipment;equipment;equipment;equipment;weighing;weighing;weighing;weighing;intelligent;intelligent;intelligent;intelligent;SCMSCMSCMSCM目录0前言........................................................................................................................11衡器的基础知识....................................................................................................21.1衡器的概念和分类.............................................................................................21.2衡器的发展简史.................................................................................................21.3衡器计量在国民经济中的作用........................................................................31.4设计研究的内容.................................................................................................42设计总体方案的确定............................................................................................52.1设计的技术要求和主要特征及功能................................................................52.1.1数字电子秤基本参数....................................................................................52.1.2数字电子秤基本结构....................................................................................62.1.3数字电子秤主要特征及功能........................................................................62.2设计的工作原理和主要部件............................................................................92.2.1设计的工作原理.............................................................................................92.2.2称重传感器.....................................................................................................92.2.3电阻应变片式称重传感器..........................................................................122.2.4显示控制仪表...............................................................................................142.3设计方案中主要模块选型论证......................................................................182.3.1数据采集模块...............................................................................................182.3.2电源模块.......................................................................................................212.3.3前级放大模块...............................................................................................222.3.4A/D转换模块...............................................................................................242.3.5人机交互模块...............................................................................................253设计的总体硬件方案.........................................................................................273.1硬件结构框图...................................................................................................273.2各部分硬件电路实现......................................................................................304设计的总体软件方案.........................................................................................344.1流程图...............................................................................................................344.2软件说明...........................................................................................................354.3测试结果及误差分析：..................................................................................364.4使用操