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1、eaintheaccidentinvestigation,managementandreporting,eachpostshouldbedevelopedunderthissystemspecialistscheck,cleartheexaminations,time,cyclesandotherrelevantregulations.Strengtheningsitesupervisionandexamination,todetectandinvestigateillegalcommand,illegaloperationsandviolationsofoperatingrules.Seco
2、ndsafetyreferstotheproductionsite,technologymanagement,equipment,facilities,andsooncanleadtoaccidentsrisksexist.1,accordingtotheextentofthesecurityrisks,solvingisdividedintoa,b,andclevelsofdifficulty;A-level:difficult,miningdifficulties,shallbereportedtothecompany'sproblems.B-class:difficulttoresolv
3、edif学生实验报告系别电子工程系课程名称电子技术实验班级实验名称阻容耦合放大电路姓名实验时间2011年 3月 16日学号指导教师报告内容一、实验目的和任务1.学习放大电路频率特性的测量方法；2.观察电路元件参数对放大电路频率特性的影响；3．进一步熟练掌握和运用放大电路主要性能参数（如静态工作点参数、放大倍数、输入电阻、输出电阻）的测试方法；4.巩固多级放大电路的有关理论知识。二、实验原理介绍本实验采用的电路如图3-1所示。1.中频段的电压放大倍数在图3-1电路中的中频段，耦合电容和旁路电容可以当作交流短路，三极管的电容效应可以忽略不计。此时，考虑后级放大电路对前级放大电路所构成的负载效应时，
4、也就是将后级放大电路的输入电阻作为前级放大电路的负载，则前级放大电路的电压放大倍数为听范读短文的录音。学生根据拼音自由朗读短文，不会拼读的音节求助同学或老师。听老师读短文，把自己不会认读的字和词听清楚。指名朗读，重点纠正“蓝”“绿”“帆”的读音。齐读短文，进一步熟悉短文。你最喜欢哪一句话？指导学生有感情地朗读。ficulties,shallconsistofminingorganizationstosolveproblems.C-class:fromsegmentsandbusinessrisksthatmustbeaddressedintheDepartment.2,open-pitmine
5、unsafetypesinclude:electrical,transport,blasting,fire,andotherslope.3,accordingtotheseverityofthehazardfilledinbyunittroubleshooting,registrationform(seeatteaintheaccidentinvestigation,managementandreporting,eachpostshouldbedevelopedunderthissystemspecialistscheck,cleartheexaminations,time,cyclesand
6、otherrelevantregulations.Strengtheningsitesupervisionandexamination,todetectandinvestigateillegalcommand,illegaloperationsandviolationsofoperatingrules.Secondsafetyreferstotheproductionsite,technologymanagement,equipment,facilities,andsooncanleadtoaccidentsrisksexist.1,accordingtotheextentofthesecur
7、ityrisks,solvingisdividedintoa,b,andclevelsofdifficulty;A-level:difficult,miningdifficulties,shallbereportedtothecompany'sproblems.B-class:difficulttoresolvedif（3-1）其中，是后级放大电路的输入电阻，，后级放大倍数为（3-2）全电路的电压
