项目1 常用仪器仪表和工具的使用······················································ 1__eol__任务1.1 万用表的使用································································ 1__eol__一、数字万用表的使用···························································· 1__eol__二、指针式万用表的使用························································· 4__eol__三、台式万用表的使用···························································· 7__eol__任务1.2 直流稳压电源的使用······················································ 12__eol__一、直流稳压电源简介··························································· 12__eol__二、直流稳压电源的基本操作··················································· 14__eol__任务1.3 函数信号发生器的使用··················································· 16__eol__一、DG1022U 任意函数信号发生器简介······································ 16__eol__二、函数信号发生器的基本操作················································ 17__eol__任务1.4 数字示波器的使用························································· 18__eol__一、数字示波器简介······························································ 18__eol__二、DS1072U 数字示波器的使用方法········································· 21__eol__任务1.5 常用工具的使用···························································· 22__eol__一、常用工具的种类······························································ 23__eol__二、常用工具的特点及用途····················································· 23__eol__三、常用工具的使用注意事项··················································· 25__eol__项目2 常用电子元器件的识别与检测·················································· 26__eol__任务2.1 电阻器的识别与检测······················································ 26__eol__一、电阻器·········································································· 26__eol__二、固定电阻器的主要参数····················································· 26__eol__三、特殊电阻器···································································· 28__eol__四、检测固定电阻器······························································ 29__eol__五、检测可变电阻器······························································ 30__eol__任务2.2 电容器的识别与检测······················································ 31__eol__一、电容器·········································································· 31__eol__二、电容器的主要参数··························································· 35__eol__三、检测电容器···································································· 36__eol__任务2.3 电感器和变压器的识别与检测··········································· 38__eol__一、电感器和变压器······························································ 38__eol__二、电感器和变压器的主要参数················································ 39__eol__三、电感器的主要作用··························································· 39__eol__四、检测色码电感器和电源变压器············································· 40__eol__任务2.4 二极管的识别与检测······················································ 41__eol__一、二极管·········································································· 42__eol__二、二极管的主要参数及特性··················································· 44__eol__三、检测二极管···································································· 45__eol__任务2.5 三极管的识别与检测······················································ 47__eol__一、三极管·········································································· 47__eol__二、三极管的主要参数··························································· 48__eol__三、检测三极管···································································· 49__eol__任务2.6 光电器件的识别与检测··················································· 50__eol__一、光敏电阻······································································· 51__eol__二、光电二极管···································································· 52__eol__三、光敏三极管···································································· 53__eol__四、热释电红外传感器··························································· 53__eol__五、光电耦合器···································································· 54__eol__任务2.7 其他常用元器件的识别··················································· 55__eol__一、集成电路······································································· 55__eol__二、磁性元件····