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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials, Volume 32, Number 7(3) (2020)
Copyright(C) MYU K.K.
pp. 2551-2567
S&M2282 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2020.2846
Published: July 31, 2020

Analytical and Experimental Study on Gyroscopic Power Generator with Power Feedback [PDF]

Hiroshi Hosaka and Yuki Tajima

(Received February 28, 2020; Accepted June 30, 2020)

Keywords: energy harvesting, gyroscope, power generator, vibration, positive feedback

A gyroscopic power generator that self-accelerates its spinning velocity via positive power feedback is developed. In our previous study, a power of 1.8 W was generated for a gyro-generator, but an external power source was necessary to drive the spinning motor. In this study, the power generated by the precession movement of a flywheel (FW) is applied to the spinning motor. This accelerates the spinning velocity by boosting the feedback voltage. A mathematical model of the generator is presented. Then, the relationships among spin acceleration, generated power, and boost ratio are studied using approximate solutions and numerical analyses. Finally, the validity of the theoretical results is verified by experiment.

Corresponding author: Hiroshi Hosaka


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Cite this article
Hiroshi Hosaka and Yuki Tajima, Analytical and Experimental Study on Gyroscopic Power Generator with Power Feedback, Sens. Mater., Vol. 32, No. 7, 2020, p. 2551-2567.

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