CAJ | 학술논문

巨磁电阻是新一代高灵敏度的磁敏器件，其输出电压与磁感应强度成正比。当照明线路接通交流电时，不同大小的负载，导线中的电流会不同，从而在导线周围会产生磁感应强度不同的交变磁场。应用巨磁电阻AA001感应此交变磁场，会产生正弦电压信号，其大小正比于此磁场。通过寻迹此感应电压的幅值，可以辨识线路走向。采用AVR单片机ATMega128，LCD12864Z显示器，XF-S4240语音合成芯片，设计制作了照明线路探测装置，可以对隐蔽的照明线路进行探测。
거자전조시신일대고령민도적자민기건，기수출전압여자감응강도성정비。당조명선로접통교류전시，불동대소적부재，도선중적전류회불동，종이재도선주위회산생자감응강도불동적교변자장。응용거자전조AA001감응차교변자장，회산생정현전압신호，기대소정비우차자장。통과심적차감응전압적폭치，가이변식선로주향。채용AVR단편궤ATMega128，LCD12864Z현시기，XF-S4240어음합성심편，설계제작료조명선로탐측장치，가이대은폐적조명선로진행탐측。
GMR is a new generation of high sensitivity magnetic device whose output voltage is proportional to the magnetic in-duction. When different load access to the lighting circuit, the current in the wire will be different. So around the wire will produce different magnetic induction intensity alternating magnetic field. This GMR sensor AA001 applications alternating magnetic field, will produce a sinusoidal voltage signal proportional to the size of this field. By tracing this induced voltage amplitude can recognize alignments. Using AVR ATMega128, and LCD12864Z display, XF-S4240 speech synthesis chip, designed the lighting circuit detec-tion device which can detect concealed lighting line.