A nanograting-based flexible and stretchable waveguide for tactile sensing

Nanoscale Research Letters

Qingxi Liao¹  Wang Peng²  Han Song³ 

[1] College of Engineering, Huazhong Agricultural University, 430070, Wuhan, China;College of Engineering, Huazhong Agricultural University, 430070, Wuhan, China;School of Mechanical Science and Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China;School of Mechanical and Electronic Engineering, Wuhan University of Technology, 430070, Wuhan, China;

关键词: Flexible and stretchable waveguide;    tactile sensing;    Nanoreplica molding;   

DOI  :  10.1186/s11671-021-03488-0

来源: Springer

【 摘 要 】

Based on the related characteristics of optical waveguide and flexible optical materials, a flexible and stretchable optical waveguide structure oriented to tactile perception is proposed. The sensing principle of optical waveguide is based on mechanical deformation caused by output light loss. It overcomes the shortcomings of traditional optical waveguide devices, which are unable to conform to irregular surface. The flexible and stretchable optical waveguide is fabricated with nanoreplica molding method, and it has been applied to the measurement of pressure and strain in the field of tactile sensing. The flexible and stretchable optical waveguide had a strain detection range of 0 to 12.5%, and the external force detection range is from 0 to 23 × 10–3 N.

【 授权许可】

CC BY