简易照明线路探测仪全国大学生电子设计竞赛论文大学学位论文.doc

2013年全国大学生电子设计竞赛 （题） 【组】 20年9月日 （题） 【组】 Abstract] the design of simple lighting circuit detector is based on the electrical wire in electric current produces a magnetic field principle, using the method of detecting the magnetic field, by which produces to the electrified wire magnetic field makes the detection head generates a voltage, this voltage sampling probe amplification, so that the output of a certain size by driving waveform, buzzer hint, so as to achieve the detection of power cable. The system is capable of weak magnetic field generated by the 60W lamp and 11W lamp wire to detect, so as to achieve the charged cable scanning, recording live cable. In the end position detection, cable box number to save the system, but also can access at any time to cable position when necessary. And the system of no electric cable through the position, effect of the earths magnetic field detector does not generate false positives generated by the system, which can accurately reach the designated position detection whether charged cable, is a simple lighting circuit ideal detector.【关键词】照明线路、磁场、探测仪 [keyword] lighting circuit； magnetic field； detector 目 录 2 系统方案论证与选择....................................................................................................................2 2.1 ................................................... .............. .............. ...............................................2 2.2显示回放模块..........................................................................................................................3 2.3 探测模块.................................................................................................................................3 3系统理论分析与计算 3.1系统传感器的选用分析 3.1.1传感器 3.1.2霍尔传感器 3.1.3磁阻效应法 3.2原理计算 4系统电路与程序设计 4.1电路的设计 4.1.1 系统总体框图 4.1.2 探测子系统框图与电路图 4.1.3 键盘输入子系统与电路原理图 4.1.4 电源 4.2 程序的设计 4.2.1程序功能描述 4.2.2程序流程图 5测试方案与测试结果 5.1测试方案 5.2测试条件与仪器 5.3测试结果及分