Polymer-Based Optical Waveguide Tactile Sensing Method for 3-D Surfaces

doi:10.1109/JSEN.2023.3252263

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	Polymer-Based Optical Waveguide Tactile Sensing Method for 3-D Surfaces
	Hu, Jian 2,3; Cao, Danqian 1; Li, Yue 1; Liu, Hongbin 1,2,3
刊名	IEEE SENSORS JOURNAL
	2023-04-15
卷号	23 期号:8 页码:8761-8768
关键词	3-D surface polymer-based soft waveguide tactile sensor
ISSN号	1530-437X
DOI	10.1109/JSEN.2023.3252263
通讯作者	Liu, Hongbin(liuhongbin@ia.ac.cn)
英文摘要	At present, most tactile sensors are fabricated based on the flat surface, which greatly limits their applications in the 3-D scenario. To deal with the bottleneck, this article proposes a polymer-based optical waveguide sensing method. The waveguide can be integrally formed along a channel within a 3-D surface. Microbending light loss of a waveguide is the sensing principle. By studying the linearity between the degree of microbending and light loss, the feasibility analysis of spherical tactile sensing element (tactile) was completed, as well as the basis for size selection of it. In addition, the key to layout on 3-D surface of the proposed sensing method is that the bending radius of the waveguide is within the critical angle of total internal reflection (TIR). By normalizing the ratio of the side length of the cross section to the bending radius, it is shown that the light loss does not increase when the proportionality coefficient is less than 0.3. The experiment is validated by embedding four tactiles in a 3-D surface. The cross section of the waveguide is 1.5 x 1.5 mm. We demonstrated that the static hysteresis error for a tactile is less than 16% within 595 kPa, the best sensing sensitivity is 1.42 x 10(-5) kPa(-1), and the maximum measurement range is from 0 to 850 kPa. As for the dynamic measurement, the tactile can rapidly response the signal change with given frequencies (the maximum is 10 Hz). The average delay time is around 12 ms.
资助项目	Huaiwei Technologies Research and Development (U.K.) Ltd ; InnoHK Funding Scheme
WOS关键词	FABRICATION ; SENSOR
WOS研究方向	Engineering ; Instruments & Instrumentation ; Physics
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000974500000075
资助机构	Huaiwei Technologies Research and Development (U.K.) Ltd ; InnoHK Funding Scheme
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/53299]
专题	多模态人工智能系统全国重点实验室
通讯作者	Liu, Hongbin
作者单位	1.Kings Coll London, Fac Life Sci & Med, Sch Biomed Engn & Imaging Sci, London SE1 7EU, England 2.Chinese Acad Sci, Hong Kong Inst Sci & Innovat, Ctr Artificial Intelligence & Robot CAIR, Hong Kong, Peoples R China 3.Chinese Acad Sci CASIA, Inst Automat, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Hu, Jian,Cao, Danqian,Li, Yue,et al. Polymer-Based Optical Waveguide Tactile Sensing Method for 3-D Surfaces[J]. IEEE SENSORS JOURNAL,2023,23(8):8761-8768.
APA	Hu, Jian,Cao, Danqian,Li, Yue,&Liu, Hongbin.(2023).Polymer-Based Optical Waveguide Tactile Sensing Method for 3-D Surfaces.IEEE SENSORS JOURNAL,23(8),8761-8768.
MLA	Hu, Jian,et al."Polymer-Based Optical Waveguide Tactile Sensing Method for 3-D Surfaces".IEEE SENSORS JOURNAL 23.8(2023):8761-8768.