一种照明线路探测仪的设计和实现

Design and Implementation of A Lighting Circuit Detector

分析了照明线路通电后形成的空间交变电磁场,计算了电磁感应线圈产生的感应电动势大小,设计了适合检测照明电路的电感线圈结构和线圈数.探测仪应用电路包括选频电路、微弱信号放大电路、幅度检测电路和比较发声电路.测试结果表明:探测仪能准确探测出墙面内的照明线路.

The paper analyzes the space alternating electromagnetic field form by the power of the lighting circuit. The induced electromotive force generated by the electromagnetic induction coil is calculated. The structure and the number of coils are designed to measure the inductance of the circuit. Application of detector circuit includes frequency selective circuit, signal amplification circuit, amplitude detection circuit and a sound circuit comparison. Test results show that the detector can accurately detect the inner wall lighting circuit.