说明书杨国宇.docx

长春大学 组装收音机电子工艺实习 长 春 大 学 电 子 工 艺 实 习 报 告 题目名称 组装收音机 院（系） 电子信息工程学院 专业（班级） 自动13403 学生姓名 杨国雨 指导教师 庄乾章 起止日期 2015-07-06至2015-07-10 组装收音机电子工艺实习 [摘要]?电子技术实习的主要目的就是培养学生的动手能力,掌握一定操作技能并亲手制作几种实际产品,有助于学生对理论知识的理解,帮助学生学习专业知识,使学生对电子元件及收音机的装机与调试有一定的感性和理性认识。收音机、电视机等常用小家电电器组装是电子电器专业的综合实习的主要内容。本文就如何组装超外差收音机这一小家电进行探讨，它主要由输入回路、变频级、中放级、检波级、低放级和功放级组成我们要知道它具有灵敏度高、工作稳定、选择性好及失真度小等优点。强调一整套完整、严密的工序过程和检测方法，目的是提高实习效果，增强学生对电子技术专业学习的兴趣。对电子专业的其它实习具有借鉴作用。 [关键字] 差分放大 变频 检波 低放 Assembled the radio electronic process practice [Abstract] Electronic technology practice of the main purpose is to cultivate the students’ practical ability, to master certain skills and personally produced several actual products, helps students not only understand and the theory of knowledge, help students to learn professional knowledge, so that students of electronic components and radio installed and commissioning has certain emotional and rational knowledge. The main contents of the comprehensive practice of the electronic and electrical equipment are the main contents of the electrical appliances, such as the radio, TV, and so on. In this paper how to assemble the radio a number of small household electrical appliances are discussed, emphasizes a set of integrity, strict process and detection method to improve the practice effect, enhance interest in student in students of electronic technology professional learning. The other practice of electronic specialty has reference function. [Key words] Differential amplification Frequency conversion Detection LC oscillation 目 录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc425155772 第1章 常用元器件的介绍  PAGEREF _Toc425155772 \h 1  HYPERLINK \l _Toc425155773 1.1电阻R  PAGEREF _Toc425155773 \h 1  HYPERLINK \l _Toc425155774 1.2电容C  PAGEREF _Toc425155774 \h 1  HYPERLINK \l _Toc425155775 1.3电位器W  PAGEREF _Toc425155775 \