DT-830B数字万用表---电装实习报告

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1、成绩徐州工程学院实习报告实习名称电装实习学院数理学院专业应用物理学班级11光伏学生姓名学号实习地点教2-419指导教师王一如实习起止时间：2014年12月15日至2014年12月21日目录一.实习目的··········································1二.实习要求··········································1三.元器件的判别和测量·······························11.实验工具·······························

2、·············12.各种零配件和相关的材料说明··························13.元件的认识············································2四.实验原理··········································3II1.DT-830B型数字万用表原理····························32.电路测量原理和电路工作原理··························4五．安装和焊接··················

3、·····················91.装配和安装工艺······································92.焊接工艺···········································11六．调试、故障排除和校验···························131.校准和检测原理·····································132.使用仪器···········································13II3.测量·····

4、··········································134.检测···············································14七．结束语··········································14II一.实习目的1.通过DT-830B数字万用表装配实验，了解万用表结构原理。2.认识并熟练测量各个元器件，了解元器件标识的意义。3.对照原理图和印制电路板图，掌握电路组装焊接工艺。4.通过调试仪器并检测电路功能，培养动手能力。二.实习要求1.了解万用

5、表特点，熟悉工作原理。2.熟悉装配数字万用表的基本工艺流程，安装调试万用表。3.认识液晶屏显示器件。4.掌握基本的装配工艺、培养自身的动手能力。三.元器件的判别和测量1.实验工具：1.1焊接电路板所需的烙铁和锡以及松香。1.2一个标准的数字万用表、螺丝刀、镊子、刀片等。2.各种零配件和相关的材料说明：2.1元件清单（一）1.（1）底面壳各1个（4）旋纽1个（2）液晶片1片（5）屏蔽纸1张（3）液晶片支架1个（6）功能面板2.（1）IC：7106（全检）（2）表笔插孔柱3个3.（1）保险管、座1套（8）定位弹簧2.8*52个（2）HFE座1

6、个（9）接地弹簧4*13.51个第13页（3）V行触片6片（10）2*8自攻螺钉（固定线路板3个（4）9V电池1个（11）2*10自攻螺钉（固定底壳）2个（5）电池扣1个（12）电位器201（VR1）1个（6）导电胶条2个（13）锰铜丝电阻（R0）1个（7）滚珠2个4.（1）表笔一付（2）说明书（3）电路图及注意要点1张2.2元件清单（二）代号参数精度代号参数精度R100.990.5%R19220K5%R890.3%R12220K5%R201000.3%R13220K5%R219000.3%R14220K5%R229K0.3%R15220

7、K5%R2390K0.3%R2470K5%R24117K0.3%R31M5%R25117K0.3%R322K20%R35117K0.3%表1元件清单R26274K0.3%C1100pFR27274K0.3%C2100nFR51K1%C3100nFR63K1%C4100nFR730K1%C5100nFR30100K5%C6100nFR4100K5%R1150K5%D31N4007R18220K5%Q190133.元件的认识3.1电阻值的识别根据以下各色环所代表意义的列表来正确识别电阻值图1色环的标注第13页3.2电容值识别电容的常用单位为p

8、F(皮法),nF(纳法),uF(微法)。大多数电容的电容值是直接打印在电容上的，部分电容的电容值是按下列方法打印在电容上，电容的最大耐压也打印在电容上。倍乘数数字01234589倍乘11010