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On-skin and tele-haptic application of mechanically decoupled taxel array on dynamically moving and soft surfaces

npj Flexible Electronics 2022年第1期6卷 964-972页

作者： Se Young Kwon Gyeongsuk Park hanbit jin Changyeon Gu Seung jin Oh Joo Yong Sim Wooseup Youm Taek-Soo Kim Hye jin Kim Steve Park Department of Materials Science and Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Electronics and Telecommunications Research Institute(ETRI) Daejeon 34129Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Department of Mechanical Systems Engineering Sookmyung Women’s UniversityDaejeon 04313Republic of Korea

To accurately probe the tactile information on soft skin,it is critical for the pressure sensing array to be free of noise and inter-taxel crosstalk,irrespective of the measurement ***,on dynamically moving and soft surfaces,which are common conditions for on-skin and robotic applications,obtaining precise measurement without compromising the sensing performance is a significant challenge due to mechanical coupling between the sensors and with the moving *** this work,multi-level architectural design of micro-pyramids and trapezoid-shaped mechanical barrier array was implemented to enable accurate spatiotemporal tactile sensing on soft surfaces under dynamic ***-off relationship between limit of detection and bending insensitivity was discovered,which was overcome by employing micropores in barrier ***,in-situ pressure mapping on dynamically moving soft surfaces without signal distortion is demonstrated while human skin and/or soft robots are performing complicated tasks such as reading Braille and handling the artificial organs.

关键词： artificial moving dynamically

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Highly pixelated,untethered tactile interfaces for an ultra-flexible on-skin telehaptic system

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npj Flexible Electronics 2022年第1期6卷 809-819页

作者： hanbit jin Yunjeong Kim Wooseup Youm Yulim Min Saerom Seo Chaehyun Lim Chan-Hwa Hong Seyoung Kwon Gyeongseok Park Steve Park Hye jin Kim Electronics and Telecommunications Research Institute(ETRI) DaejeonKorea Korea University of Science and Technology(UST) DaejeonKorea Korea Advanced Institute of Science and Technology(KAIST) DaejeonKorea

Realizing highly immersive tactile interactions requires a skin-integrated,untethered,high-definition tactile transducer devices that can record and generate tactile ***,the rigid and bulky form factor,and insufficient resolution of existing actuators are hindering the reproduction of sophisticated tactile sensations and immersive user ***,we demonstrate an ultraflexible tactile interface with high spatial resolution of 1.8 mm for telehaptic communication on human *** mechanism sensors and sub-mm scale piezoceramic actuators are designed to record and generate the static and dynamic pressures in a wide frequency range(1 Hz to 1 kHz).Moreover,actuators are integrated on ultra-flexible substrate with chessboard pattern to minimize stress during mechanical ***,remote transmissions of various tactile stimuli,such as shapes,textures,and vibration patterns were demonstrated by the telehaptic system with low latency(<1.55 ms)and high fidelity as proven by the shorttime Fourier-transform analysis.

关键词： tile system Highly

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