智能式多路数显压力测量、控制仪设计

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1、毕业论文题目智能式多路数显压力测量、控制仪设计学生姓名学号所在院(系)专业班级指导教师完成地点年月日52智能式多路数显压力测量、控制仪设计[摘要]本次设计介绍了智能压力传感器外围电路的硬件设计,并根据硬件进行了软件编程。本次设计是基于STC89C51单片机的测量与显示。是通过压力传感器将压力转换成电流信号，再串联一个电阻将电流信号转化为电压信号，送至8位A／D转换器，然后将模拟信号转换成单片机可以识别的数字信号，再经单片机转换成LCD显示器可以识别的信息，最后显示输出。而在显示的过程中通过键盘，向计算机系统输入各种数据和命令，让单片机系统处于预定的功能状态，

2、显示需要的值。本设计的最终结果是，将软件下载到硬件上调试出来了需要显示的数据，当输入的模拟信号发生变化的时候，通过A/D转换后，LCD将显示不同的数值。[关键词]STC89C51单片机；压力传感器；A/D转换器；LCD显示52Intelligentmulti-channeldigitalpressuremeasurement,controlinstrumentdesign[Abstract]Pressureisoneoftheimportantparametersintheprocessofindustrialproduction.Pressuredetec

3、tionorcontrolisanessentialconditiontoensureproductionandtheequipmenttosafelyoperating,whichisofgreatsignificance.Thesingle-chipisinfiltratingintoallfieldsofourlives,soitisverydifficulttofindtheareainwhichthereisnotracesofsingle-chipmicrocomputer.Inthisgraduationdesign,primarilythro

4、ughbyusingsingle-chipanddedicatedchip,handlingofanalogsignalmeasuredbythesensortocompleteintelligentfunction.Thisdesignillustratesexternalhardwarecircuitdesignofintelligentpressuresensor,andconductsoftwaredevelopmenttothehardware.ThedesignisbasedonmeasurementanddisplayofSTC89C51sin

5、gle-chip.Thisisthepressuresensorswillconvertthepressureintoelectricalsignals.Toaseriesresistorconvertcurrentsignaltovoltagesignalandtransferredtothe8-bitA/Dconverter.Thentheanalogsignalisconvertedintodigitalsignalswhichcanbeidentifiedbysingle-chipandthenconvertedbysingle-chipintoth

6、einformationwhichcanbedisplayedonLCDmonitor,andfinallydisplayoutput.Inthecourseofshow,throughthekeyboardtoinputallkindsofdataandcommandsintothecomputer,thesingle-chipwilllocateinapredeterminedfunctionsteptodisplayrequiredvalues.Theendresultofthisdesignisthatbydownloadingsoftwaretot

7、hehardware,itwillgetthedatawhichisrequiredtodisplaybydebugging.Whentheinputanalogsignalschange,theLEDmonitorwilldisplaydifferentvaluesthroughtheA/Dconverting.[Keywords]STC89C51single-chip;pressuresensor;A/Dconverter;LCDmonitor;52目录1绪论31.1研究背景31.2基于单片机的智能压力检测的原理31.3测量压力的意义32.系统方案论证3

8、2.1功能要求32.1.1智能测量的要求32.1.2