Development and Application of Wireless Power Transmission Systems for Wireless ECG Sensors

Journal of Sensors. 2018;2018 DOI 10.1155/2018/5831056

 

Journal Homepage

Journal Title: Journal of Sensors

ISSN: 1687-725X (Print); 1687-7268 (Online)

Publisher: Hindawi Limited

LCC Subject Category: Technology: Technology (General)

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML, ePUB, XML

 

AUTHORS

Jin-Chul Heo (Department of Biomedical Engineering, School of Medicine, Keimyung University, Daegu 42601, Republic of Korea)
Jiae Park (Department of Biomedical Engineering, School of Medicine, Keimyung University, Daegu 42601, Republic of Korea)
Sohee Kim (Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Republic of Korea)
Jeonghon Ku (Department of Biomedical Engineering, School of Medicine, Keimyung University, Daegu 42601, Republic of Korea)
Jong-Ha Lee (Department of Biomedical Engineering, School of Medicine, Keimyung University, Daegu 42601, Republic of Korea)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 18 weeks

 

Abstract | Full Text

We investigated the variations in the magnetic field distribution and power transmission efficiency, resulting from changes in the relative positions of the transmitting and receiving coils, for electromagnetic induction-type wireless power transmission using an elliptical receive coil. Results of simulations using a high-frequency structure simulator were compared to actual measurement results. The simulations showed that the transmission efficiency could be maintained relatively stable even if the alignment between the transmitting and receiving coils was changed to some extent. When the centre of the receiving coil was perfectly aligned with the centre of the transmitting coil, the transmission efficiency was in the maximum; however, the degree of decrease in the transmission efficiency was small even if the centre of the receiving coil moved by ±10 mm from the centre of the transmitting coil. Therefore, it is expected that the performance of the wireless power transmission system will not be degraded significantly even if perfect alignment is not maintained. Animal experiments confirmed good ECG signals for the simulation conditions. The results suggested a standardized application method of wireless transmission in the utilization of wireless power for implantable sensors.