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《一阶惯性环节论文》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、一阶惯性环节的频率特性是工业生产过程中最常见的物理量Z—，一阶惯性坏节频率特性的研究的进步会大大提高促进科技的发展。本论文完成了一个基于虚拟仪器的一阶惯性环节频率特性测定的设计，是利用钳电阻温度传感器的电阻值随温度变化的特性进行测温的，属于接触式测温。在硬件设计中，釆用恒流源电路给热电阻提供电流，将热电阻温度传感器与恒流源以及特定电阻组成电路，通过对电路输出的电压进行放大，经数据采集卡采集,使得非电量的温度信号转变为电压信号。在软件设计中，采用先进的虚拟仪器LabWindows/CVI设计软件作为开发平台，通过设计虚拟面板和C程序，完成仿真参数
2、设定和结果显示模块以及采样模块功能的设计，同时增加了采样时间和采样间隔的设定功能，通过对采集装置的标定，从测试结果可以证明，所设计的虚拟仪器LabWindows/CVI设计软件能够达到预期的设计耍求，设计是成功的。关键词：一阶惯性环节，温度测量，热电阻，虚拟仪器IIABSTRACTOne-orderinertiallinkthefrequencycharacteristicisthemostcommonindustrialproductionprocessisoneofthephysicalquantities.One-orderinertia
3、llinkfrequencycharacteristicindustrialprocessmeasurementisanimportantlink,itiswidelyusedinpetroleum,chemical,machinery,metallurgy,power,lightindustry,food,atomicenergyandaerospaceindustriesandtechnologyforproductionsafety,qualityandcontrol,productionefficiency,savingenergywa
4、ssignificant,therefore,frequencycharacteristicofone-orderinertiallinkinscienceandtechnologyresearchanddeterminationofproductionpracticeisveryimportant.Infact,one-orderinertiallinktheprogressofthefrequencycharacteristicsofthestudywillgreatlyimprovepromotingthedevelopmentofsci
5、enceandtechnology;Conversely,theprogressofscienceandtechnologyandwillgiveone-orderinertiallinkfrequencycharacteristicsmeasuringtheory,raisingthelevelofone-orderinertiallinkofmeasuringtechnologyoffrequencycharacteristicsoftheperfectimprovementcreatefavorableconditions.Thispap
6、erbasedonvirtualinstrumentfinishaone-orderinertiallinkthefrequencycharacteristicsofthedeterminationofthedesignistheuseofplatinumresistancetemperaturesensorresistancepropertiesarechangingwithtemperaturemeasurementtemperature,belongtonon-contactmeasurementtemperature.Inthehard
7、waredesign,theconstantcurrentsourcecircuittoheatresistance,willprovidecurrentthermalresistancetemperaturesensorandconstantcurrentsourceandcertainresistors,throughthecircuitcircuittoamplifytheoutputvoltage,thedatasamplingcard,makeotherreadings.huazhixintemperaturesignalintovo
8、ltagesignal.Insoftwaredesign,USEStheadvancedvirtualinstrumentLabWindows/CVI
