Characterization of a rotary hybrid multimodal energy harvester

Miles R. Larkin; Yonas Tadesse

doi:10.1117/12.2045271

1 April 2014 Characterization of a rotary hybrid multimodal energy harvester

Miles R. Larkin, Yonas Tadesse

Proceedings Volume 9057, Active and Passive Smart Structures and Integrated Systems 2014; 90570U (2014) https://doi.org/10.1117/12.2045271
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

In this study, experimental characterizations of a new hybrid energy harvesting device consisting of piezoelectric and electromagnetic transducers are presented. The generator, to be worn on the legs or arms of a person, harnesses linear motion and impact forces from human motion to generate electrical energy. The device consists of an unbalanced rotor made of three piezoelectric beams which have permanent magnets attached to the ends. Impact forces cause the beams to vibrate, generating a voltage across their electrodes and linear motion causes the rotor to spin. As the rotor spins, the magnets pass over ten electromagnetic coils mounted to the base, inducing a current through the wire. Several design related issues were investigated experimentally in order to optimize the hybrid device for maximum power generation. Further experiments were conducted on the system to characterize the energy harvesting capabilities of the device, all of which are presented in this study.

Citation Download Citation

Miles R. Larkin and Yonas Tadesse "Characterization of a rotary hybrid multimodal energy harvester", Proc. SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 90570U (1 April 2014); https://doi.org/10.1117/12.2045271

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available