Intentional Blocking Based Photoelectric Soft Pressure Sensor with High Sensitivity and Stability

doi:10.1089/soro.2021.0186

	Intentional Blocking Based Photoelectric Soft Pressure Sensor with High Sensitivity and Stability
	Li, Zhengwei; Cheng, Long; Liu, Zeyu
发表期刊	SOFT ROBOTICS
ISSN	2169-5172
	2022-05-23
页码	12
通讯作者	Cheng, Long(long.cheng@ia.ac.cn)
摘要	Soft pressure sensors have recently attracted considerable attention because of their applications in human-machine interface, soft robotics, and prosthetics. However, there remain some challenges in achieving satisfactory performance (e.g., high sensitivity, wide sensing range, high stability) for soft pressure sensors. This article reports an intentional blocking based photoelectric pressure sensor. Two different blocking methods are investigated: the single-row-pyramid blocking and the double-row-pyramid blocking. The sensor has a simple structure, which is made of a light-emitting diode, photosensitive element, and silicone sensor shell. Experiments demonstrate that the sensor has a high sensitivity (the maximum sensitivity is 48.07 kPa(-1), and the minimum measurement pressure is 0.8 Pa), large pressure-sensing range (the sensing range is up to 120 kPa), superior stability (a drift about 0.4% over 12,130 repetitive cycles at 0-80 kPa), low drift (< +/- 0.2% in different 3-day testing), negligible hysteresis, and high signal-to-noise ratio (over 55 dB). By mounting the pressure sensor at the end of a robotic arm, the robot can detect subtle collisions (such as touching a balloon through a pinpoint). In addition, this article fabricates a tactile glove based on the proposed pressure sensor and shows the application of this glove for music playing and object weighing. This study provides a new structure for photoelectric sensors to increase sensitivity and also provides a more convenient way to fabricate photoelectric pressure sensors.
关键词	pressure sensor soft sensor intentional blocking structure photoelectric effect
DOI	10.1089/soro.2021.0186
关键词[WOS]	ARRAY
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[62025307] ; National Natural Science Foundation of China[U1913209] ; Beijing Municipal Natural Science Foundation[JQ19020]
项目资助者	National Natural Science Foundation of China ; Beijing Municipal Natural Science Foundation
WOS研究方向	Robotics
WOS类目	Robotics
WOS记录号	WOS:000799730900001
出版者	MARY ANN LIEBERT, INC
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/49549
专题	复杂系统认知与决策实验室_先进机器人
通讯作者	Cheng, Long
作者单位	Chinese Acad Sci, Inst Automation, State Key Lab Management & Control Complex Syst, Beijing, Peoples R China
第一作者单位	中国科学院自动化研究所
通讯作者单位	中国科学院自动化研究所
推荐引用方式 GB/T 7714	Li, Zhengwei,Cheng, Long,Liu, Zeyu. Intentional Blocking Based Photoelectric Soft Pressure Sensor with High Sensitivity and Stability[J]. SOFT ROBOTICS,2022:12.
APA	Li, Zhengwei,Cheng, Long,&Liu, Zeyu.(2022).Intentional Blocking Based Photoelectric Soft Pressure Sensor with High Sensitivity and Stability.SOFT ROBOTICS,12.
MLA	Li, Zhengwei,et al."Intentional Blocking Based Photoelectric Soft Pressure Sensor with High Sensitivity and Stability".SOFT ROBOTICS (2022):12.