Premium
Self‐Powered Gyroscope Ball Using a Triboelectric Mechanism
Author(s) -
Shi Qiongfeng,
Wu Han,
Wang Hao,
Wu Hanxiang,
Lee Chengkuo
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201701300
Subject(s) - triboelectric effect , gyroscope , accelerometer , ball (mathematics) , rotation (mathematics) , sensitivity (control systems) , energy harvesting , acceleration , nanogenerator , physics , materials science , acoustics , computer science , energy (signal processing) , electronic engineering , engineering , artificial intelligence , classical mechanics , mathematical analysis , mathematics , quantum mechanics , piezoelectricity
Healthcare monitoring systems can provide important health state information by monitoring the biomechanical parameter or motion of body segments. Triboelectric nanogenerators (TENGs) as self‐powered motion sensors have been developed rapidly to convert external mechanical change into electrical signal. However, research effort on using TENGs for multiaxis acceleration sensing is very limited. Moreover, TENG has not been demonstrated for rotation sensing to date. Herein, for the first time, a 3D symmetric triboelectric nanogenerator‐based gyroscope ball (T‐ball) with dual capability of energy harvesting and self‐powered sensing is proposed for motion monitoring including multiaxis acceleration and rotation. The T‐ball can harvest energy under versatile scenarios and function as self‐powered 3D accelerometer with sensitivity of 6.08, 5.87, and 3.62 V g −1 . Furthermore, the T‐ball can serve as a self‐powered gyroscope for rotation sensing with sensitivity of 3.5 mV s o−1 . It shows good performance in hand motion recognition and human activity state monitoring applications. The proposed T‐ball as a self‐powered gyroscope for advanced motion sensing can pave the way to a self‐powered, more accurate, and more complete motion monitoring system.