Information Transmission of Chirped Acoustic Signals and Power Transfer in Medical Implants

摘要

in this paper, we show a general method for transmission of information signals in medical implants by using an acoustic channel. The proposed method is immune to the presence of acoustic interferences, and in particular, the presence of a simultaneous acoustical energy transfer for charging the implant battery. This method is based on acoustic transmission of chirped information signals through acoustic field. The feasibility of this method is confirmed by presented experiment, where PZT piezoceramic disks are used as transducers in the acoustic (ultrasonic) channel.