电子电工习-音乐盒的制作.doc

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1、目录1.实习目的及安全常识·······················································21.1实习目的··························································21.2必备安全常识····················································21.3本次实习所用的元器件··············································22.常用仪表与工具····

2、·······················································22.1主要工具························································32.2主要仪器仪表及使用·············································33.手工焊接与电子产品的装配·················································53.1手工焊接·····················

3、···································53.2工具介绍························································53.3焊接过程中的原理···············································53.4焊接操作方法···················································53.5拆除焊点的方法········································

4、·········53.6焊接注意事项····················································73.7电子元件焊接装配···············································71.元器件特性及主要用途·····················································84.1电阻·····························································84.2三极管

5、···························································94.3二极管···························································104.4电容······························································114.5扬声器···························································124.6555芯

6、片··················································125.音乐盒原理图及方框图·················································135.1音乐播放························································135.2音乐盒工作原理··················································145.3音乐和电路及实物图···············

7、·································156.实习总结及体会··························································177.附录（音乐盒实物连接电路图）1.实习目的及仪器1.1实习目的电工实习是电子信息工程专业重要的实践课程之一，在学习电类有关理论知识之后，通过一个电子产品的装配和调试过程，建立起对电子产品的感性认识是非常必要的。日常生活中的家用电器和工业生中的很多自动化半自动化控制微处理系统都是以电子元件为基本单元，通过集成电路来实现的。同时对基

8、本操作技能进行必要的训练，为以后整个电类及其他相关学科知识的学习以及相关实践和学习打下良好的工程素养基础。1.2实习必要安全常识用电线路及电气设备的绝缘必须良好，灯头，插座，开关等的带电部位绝对不能暴露在外面，以防触电。