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Wireless Power Transmission Technology for Implantable Telemetry Device based on Multiple Transmit Coils

Journal: The Journal of the Institute of Internet, Broadcasting and Communication (Vol.15, No. 2)

Publication Date:

Authors : ;

Page : 203-211

Keywords : Telemetry system; Wireless power transfer system; Multiple transmit coil drive;

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Abstract

The implanted telemetry system provides the monitoring of species while they move within their cages. Species monitored include mice, rats, rabbits, dogs, pigs, primates, sheep, horses, cattle, and others. A miniature transmitter implanted in each animal measures one or more parameters. Parameters measured include arterial pressure, intra-pleural pressure, left ventricular pressure, intra-ocular pressure, bladder pressure, ECG, EMG, EEG, EOG, temperature, activity, and other parameters and transmits the data via radio frequency signals to a nearby receiver. Every conventional dedicated transmitter contains one or more sensors, cpu and battery. Due to the expected life of battery, the measuring time is limited. To overcome these problems, electromagnetic inductive coupling based wireless power transmission technology using multiple transmit coils were proposed. Each coil having different active area are driven by the coil driver. In this research, parallel resonance based coil driver was proposed. In addition, the device to detect where the receiver is positioned was proposed. From the experiments we show how to determine the driving condition of coil driver.

Last modified: 2015-11-19 15:36:55