A skin-inspired tactile sensor for smart prosthetics

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	A skin-inspired tactile sensor for smart prosthetics
	Hu, Chao; Wu, Yuanzhao; Liu, Yiwei; Zhou, Youlin; Man, Qikui; Asghar, Waqas; Li, Fali; Yu, Zhe; Shang, Jie; Liu, Gang
刊名	SCIENCE ROBOTICS
	2018
卷号	3 期号:22
关键词	Giant Magneto-impedance Flexible Pressure Sensors Electronic Skin Amorphous Wires Strain Sensor Mechanoreceptors Transistors Drawn Area Arm
英文摘要	Recent achievements in the field of electronic skin have provided promising technology for prosthetic systems. However, the development of a bionic tactile-perception system that exhibits integrated stimuli sensing and neuron-like information-processing functionalities in a low-pressure regime remains a challenge. Here, we demonstrate a tactile sensor for smart prosthetics based on giant magneto-impedance (GMI) material embedded with an air gap. The sensor exhibits a high sensitivity of 120 newton(-1) (or 4.4 kilopascal(-1)) and a very low detection limit of 10 micronewtons (or 0.3 pascals). The integration of the tactile sensor with an inductance-capacitance (LC) oscillation circuit enabled direct transduction of force stimuli into digital-frequency signals. The frequency increased with the force stimuli, consistent with the relationship between stimuli and human responses. The minimum loading of 50 micronewtons (or 1.25 pascals), which is less than the sensing threshold value of human skin, was also encoded into the frequency, similar to the pulse waveform of humans. The proposed tactile sensor not only showed desirable sensitivity and low detection limit but also exhibited transduction of digital-frequency signals like human stimuli responses. These features of the GMI-based tactile sensor show potential for its applications in smart prosthetics, especially prosthetic limbs that can functionally replace natural limbs.
学科主题	Materials Science
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17192]
专题	2018专题
推荐引用方式 GB/T 7714	Hu, Chao,Wu, Yuanzhao,Liu, Yiwei,et al. A skin-inspired tactile sensor for smart prosthetics[J]. SCIENCE ROBOTICS,2018,3(22).
APA	Hu, Chao.,Wu, Yuanzhao.,Liu, Yiwei.,Zhou, Youlin.,Man, Qikui.,...&Li, Run-Wei.(2018).A skin-inspired tactile sensor for smart prosthetics.SCIENCE ROBOTICS,3(22).
MLA	Hu, Chao,et al."A skin-inspired tactile sensor for smart prosthetics".SCIENCE ROBOTICS 3.22(2018).