电工电子实训教案目 录1 概述1.1 课程的性质、目的和任务...............................11.2 课程教学内容及学时分配...............................11.3 课程教学基本要求.....................................11.4 万用表装配实习的目的与意义...........................12 万用表的结构与工作原理....................................32.1 万用表的种类........................................32.2 指针式万用表.......................................32.2.1 万用表的结构特征..............................32.2.2 指针式万用表的组成............................42.2.3 万用表的结构..................................52.3 指针式万用表的工作原理.............................52.3.1 指针式万用表最基本的工作原理..................52.3.2 MF47 型万用表的工作原理......................72.3.3 MF47 型万用表电阻档工作原理..................73 万用表的安装与调试.......................................103.1 MF47 型万用表安装步骤.............................103.2 清点材料...........................................103.3 二极管、电容及电阻的认识...........................143.3.1 认识二极管...................................143.3.2 认识电解电容.................................163.3.3 认识电阻的色环...............................163.4 焊接前的准备工作...................................173.4.1 清除元件表面的氧化层.........................173.4.2 元件引脚的弯制成形...........................183.4.3 焊接练习.....................................203.4.4 焊点的正确形状...............................223.4.5 元器件的插放.................................233.4.6 元器件参数的检测.............................233.5 元器件的焊接.......................................243.5.1 元器件的焊接.................................243.5.2 错焊元件的拔除...............................253.5.3 电位器的安装.................................253.5.4 分流器的安装.................................263.5.5 输入插管的安装...............................263.5.6 晶体管插座的安装.............................273.5.7 焊接...
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