资源描述:
《毕业设计(论文)-plc皮带秤控制系统硬件设计》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、摘要随着传感器、电子技术和微机技术的崛起,称重技术得到了迅速发展,称重在数字化,智能化等方面有长足的进步,称重装置的研究与开发也进入了一个段。皮带秤等衡器更是作为一种新兴的高技术产业而受到世界各国的普遍关注,用新技术,开发各种自动称重系统,提高动态称重的准确度,加强网络功能是发展的重点。我国的衡器产业己初具规模,但高档次衡器产品技术水平落后,具有自主知识产权的高档次衡器产品对发展我国的衡器产业具有重要意义。随着传感器技术、电子仪表技术的发展,可以输出电信号的速度传感器及称重传感器迅速取代了机械式皮带秤的相应机构,而对速度、重量信号进行放大处理及实现各种运算都可以放在
2、电子仪表中完成,称量精确度提高了,秤架结构简化了,因此电子皮带秤迅速全面地取代了机械式皮带秤。但机械式皮带秤在其长达六十年左右的发展过程中也为皮带秤的使用积累了丰富的应用经验,没有机械式皮带秤的昨天,就没有电子皮带秤的今天。关键词可编程控制器;传感器;皮带秤IIAbstractAlongwithspreadafeelingmachine,electronicstechniquetechnicalwithtinymachineofrising,weighedatechniquetogetaquickdevelopment,weighatthenumeralturn,t
3、heintelligenceturnetc.containsubstantialprogressandresearchanddevelopmentwhichweighdevicealsogotintoasegment.BeltweightHengmachineisalsoconductandactionsakindofnewlyarisenandhightechniqueindustrybutbesubjectedtoaninternationalcommunityofwidespreadconcern,useanewtechnique,developvarious
4、autoweighsystem,raisetheaccuratedegreethatdynamicstateweigh,strengthenthenetworkfunctionisthepointofdevelopment.Hengmachinetheindustrypersonalbeginningofourcountryhasscale,butupscaletimetheHengmachineproducttechniquethelevelfallbehind,haveanindependentintelligentpropertyrightofupscalet
5、imeHengmachineproducttodevelopmentourcountryoftheHengmachineindustryhaveimportantmeaning.Alongwithspreadafeelingmachinetechnique,thetechnicaldevelopmentoftheelectronicsappearance,canoutputtedthespeedoftelecommunicationnumbertospreadafeelingmachineandweighedtospreadafeelingmachinetoquic
6、klyreplacecorrespondofthemachinetypeleatherbeltsteelyardorganization,buttothespeed,weightsignalcarryonenlargingaprocessingandcarryoutvariousoperationscanputintheelectronicsappearancecompletion,measuredaccuracytoraise,thesteelyardstructuresimplified,soelectronicsleatherbeltsteelyardquic
7、klyandcompletelyreplacedthemachinetypeleatherbeltsteelyard.Butthemachinetypeleatherbeltsteelyardwasalsotheusagebacklogofleatherbeltsteelyardinitaslongasaround60yearsofthedevelopmentprocessabundantofappliedexperience,thereisnoyesterdayofmachinetypeleatherbeltsteelyard,havenotodayofele