Research On Penetrable Detection System Based On Magnetically Coupled Resonant Wireless Energy Transmission Technology

In recent years, the electronic equipment is increasing day by day. Traditional way of energy transmission with plastic metal wire has a lot of defects, so wireless energy transmission technology has drawn more and more attention. Magnetically coupled resonant wireless energy transmission technology has become a hot issue ever since it was proposed. This paper presents the application of this technology on the penetrable detection system. After the study of working principle and characteristics with magnetically coupled resonant wireless energy transmission technology, The main research work and achievements of the penetrable detection system are as follows:1. This thesis introduces the detection mechanism and it’s working principle of the detection system, includes: input control module, signal generator, feedback analysis module. The key to realize detection is to measure the voltage amplitude fluctuation of the resonant circuit terminal. This thesis also introduces the distance problems and analyzes the placing problems of the coils.2 This thesis describes the hardware circuit, design principle of the resonant circuit parameters, the specific scheme to realize detection and implementation process of the detection system. The signal amplitude fluctuation measurement module is completed by a D/A digital to analog converter and the voltage comparator. Because of the limit of the detection system, the measurement results need to be corrected. The measurement speed can be improved by using dichotomy.3 This thesis conducts experiment and measures the specific data. First of all, a precision impedance analyzer 6500 B is used to measure the resonant circuit of the coil and the capacitor characteristics. Then hardware module and the resonant circuit are used together to conduct data measurement. For different cases such as series parallel resonant, different detection range, different load characteristics, penetration, the increasing of the signal source voltage, multiple target and so on, the detection are respectively used to carry on different experiment.This paper put forward the application of wireless energy transmission technology to detection system, has brought a new perspective, and also shows the feasibility of this system through experimental analysis.