张家界航空工业职业技术学院毕业设计说明书目录摘要...........................................................................................................................1第一章引言.................................................................................................................21.1设计概述.......................................................................................................21.2设计目标及意义...........................................................................................21.3章节安排.......................................................................................................3第二章方案论证与选型.............................................................................................42.1设计论证与选择...........................................................................................42.2方案论证与选择...........................................................................................42.3方案确定.......................................................................................................5第三章硬件电路设计.................................................................................................63.1原理分析.......................................................................................................63.2电路总体框图...............................................................................................63.3简易照明线路探测仪各部分设计...............................................................73.3.1电源电路设计...................................................................................73.3.2信号放大电路的设计.......................................................................83.3.3精密整流电路.................................................................................113.3.4电压比较器.....................................................................................123.3.5LED指示、蜂鸣器报警电路..........................................................13第四章产品调试.......................................................................................................144