Piezoelectric charging and wireless communication

Hyeong Jae Lee; Xiaoqi Bao; Stewart Sherrit; Yoseph Bar-Cohen; Mircea Badescu; Shannon Jackson

doi:10.1117/12.2296645

27 March 2018 Piezoelectric charging and wireless communication

Hyeong Jae Lee, Xiaoqi Bao, Stewart Sherrit, Yoseph Bar-Cohen, Mircea Badescu, Shannon Jackson

Proceedings Volume 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018; 1059810 (2018) https://doi.org/10.1117/12.2296645
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

Modern medicine is undergoing a revolution in the application of new sensor capabilities for aiding in diagnosis of specific conditions and monitoring a variety of informative vital signs. In the past, many of the measurements were limited by what could be accomplished externally. A shift toward in-vivo monitoring for both diagnostic and therapeutic sensing and actuation [1] has created a need for low power electronics, high energy density batteries and methods to successfully power devices embedded in the body. For a review of the field and sensing capabilities see [2]. Recent studies suggest that charging with ultrasound is more efficient at longer transmission distance (< 10cm) than inductive charging [3]. In this manuscript, we discuss the modeling and experimentation that we have accomplished and demonstrate in ultrasonic charging of sensors having the form and fit of in-vivo sensors. The task goal has been to use piezoelectric transducers for wireless communication and powering of sensors internal to the human body with a goal to transmit power levels of 100 μW a receiver with receiving area of 3x3 mm² over a distance of 16 cm equivalent to human body interior. The results suggest that we can transmit power levels that exceed this baseline requirement.

Citation Download Citation

Hyeong Jae Lee, Xiaoqi Bao, Stewart Sherrit, Yoseph Bar-Cohen, Mircea Badescu, and Shannon Jackson "Piezoelectric charging and wireless communication", Proc. SPIE 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018, 1059810 (27 March 2018); https://doi.org/10.1117/12.2296645

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