期刊
NANO ENERGY
卷 85, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2021.106016
关键词
Self-powered; Magnetoelectric sensor; 3D multi-angle; Motion monitoring; Humanoid robot
类别
资金
- National 1000 Young Talents Program of China
- Foundation of Shenzhen Science and Technology Innovation Committee [JCYJ20190809102407410]
- HUST
The magnetoelectric inertial sensor is a self-powered sensor designed for monitoring head motion of humanoid robots, providing capabilities for detecting accelerations, tilting angles and rotations in multiple directions. With high sensitivity, it can detect subtle changes in motion, offering effective technical support for motion monitoring of humanoid robots.
Motion monitoring stands as a powerful tool for humanoid robots to well adapt to nearby changing environment. However, despite the recent advance of inertial measuring units, both simplification of the sensors and free of power supply for 3D multi-angle monitoring remains elusive. Herein we demonstrate a facile & self-powered magnetoelectric inertial sensor for 3D multi-angle head motion monitoring of humanoid robots. A magnetic sphere could freely roll inside a smooth polymeric shell patterned with regionally distributed coils, allowing for monitoring the accelerations for 8 directions in the horizontal plane, the bowing angle for diverse directions in 3D space and rotations when tilting with multi-angle. It can detect an acceleration down to 0.06 m/s(2) and a tilting angle of 2 degrees in the vertical plane. Owing to these sensing capacities, the magnetoelectric inertial sensor can be placed inside a model head for detecting head bowing, head turning and even sudden strikes from diverse directions. Furthermore, when being placed in the humanoid robot's head, it can monitor continuous motions like left-kicking, bending knees, standing on one leg and doing the splits. Such a single inertial sensor provides a building block for motion monitoring of humanoid robots and for future development of robotics.
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