Characteristics of and Control over Resonance in the Electromotive Force of Electromagnetic Induction  

作　　者：Sang Don Bu Jin Kyu Han Jin Young Hyeon Gi Gwan Kim 

机构地区：[1]Department of Physics, Chonbuk National University, Jeonju, South Korea

出　　处：《Journal of Electromagnetic Analysis and Applications》2013年第8期317-321,共5页电磁分析与应用期刊（英文）

摘　　要：The principles of electromagnetic induction are applied in many devices and systems, including induction cookers, transformers and wireless energy transfer;however, few data are available on resonance in the electromotive force (EMF) of electromagnetic induction. We studied electromagnetic induction between two circular coils of wire: one is the source coil and the other is the pickup (or induction) coil. The measured EMF versus frequency graphs reveals the existence of a resonance/anti-resonance in the EMF of electromagnetic induction through free space. We found that it is possible to control the system’s resonance and anti-resonance frequencies. In some devices, a desired resonance or antiresonance frequency is achieved by varying the size of the resonator. Here, by contrast, our experimental results show that the system’s resonance and anti-resonance frequencies can be adjusted by varying the distance between the two coils or the number of turns of the induction coil.The principles of electromagnetic induction are applied in many devices and systems, including induction cookers, transformers and wireless energy transfer;however, few data are available on resonance in the electromotive force (EMF) of electromagnetic induction. We studied electromagnetic induction between two circular coils of wire: one is the source coil and the other is the pickup (or induction) coil. The measured EMF versus frequency graphs reveals the existence of a resonance/anti-resonance in the EMF of electromagnetic induction through free space. We found that it is possible to control the system’s resonance and anti-resonance frequencies. In some devices, a desired resonance or antiresonance frequency is achieved by varying the size of the resonator. Here, by contrast, our experimental results show that the system’s resonance and anti-resonance frequencies can be adjusted by varying the distance between the two coils or the number of turns of the induction coil.

关 键 词：ELECTROMAGNETIC INDUCTION Electromotive FORCE RESONATOR Resonance/Anti-Resonance Frequency 

分 类 号：R73[医药卫生—肿瘤]