Recent advances in multi-mode haptic feedback technologies towards wearable interfaces

Huang, Ya; Yao, Kuanming; Li, Jiyu; Li, Dengfeng; Jia, Huiling; Liu, Yiming; Yiu, Chun Ki; Woo-Young, Park; Yu, Xinge

doi:10.1016/j.mtphys.2021.100602

Cited by 42 publications

(52 citation statements)

References 178 publications

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“…S17). Previous studies have implied that different parts of the body perceived and recognized haptic feedback differently ( 51 ). To investigate the ability of these body parts to recognize the haptic reproduction of this e-skin, a series of user experiments were carried out.…”

Section: Resultsmentioning

confidence: 99%

Touch IoT enabled by wireless self-sensing and haptic-reproducing electronic skin

Zhou

Yao

et al. 2022

Sci. Adv.

Self Cite

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Tactile sensations are mainly transmitted to each other by physical touch. Wireless touch perception could be a revolution for us to interact with the world. Here, we report a wireless self-sensing and haptic-reproducing electronic skin (e-skin) to realize noncontact touch communications. A flexible self-sensing actuator was developed to provide an integrated function in both tactile sensing and haptic feedback. When this e-skin was dynamically pressed, the actuator generated an induced voltage as tactile information. Via wireless communication, another e-skin could receive this tactile data and run a synchronized haptic reproduction. Thus, touch could be wirelessly conveyed in bidirections between two users as a touch intercom. Furthermore, this e-skin could be connected with various smart devices to form a touch internet of things where one-to-one and one-to-multiple touch delivery could be realized. This wireless touch presents huge potentials in remote touch video, medical care/assistance, education, and many other applications.

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Section: Resultsmentioning

confidence: 99%

Touch IoT enabled by wireless self-sensing and haptic-reproducing electronic skin

Zhou

Yao

et al. 2022

Sci. Adv.

Self Cite

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Section: Introductionmentioning

confidence: 99%

“…However, the skin impedance fluctuates over time due to sweating and hydration changes. It is therefore difficult to maintain sufficient current injections and avoid provoking uncomfortable sensations or electrically induced lesions 7,10,17 . External force-driven actuators, mainly pneumatic and hydraulic actuators 11 , are widely explored due to their ability to produce constant and large deformations and forces.…”

Section: Introductionmentioning

confidence: 99%

Skin-integrated stretchable actuators toward skin-compatible haptic feedback and closed-loop human-machine interactions

Chen

Yang

et al. 2023

npj Flex Electron

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Skin-integrated haptic interfaces that can relay a wealth of information from the machine to the human are of great interest. However, existing haptic devices are not yet able to produce haptic cues that are compatible with the skin. In this work, we present the stretchable soft actuators for haptic feedback, which can match the perception range, spatial resolution, and stretchability of the skin. Pressure-amplification structures are fabricated using a scalable self-assembly process to ensure an output pressure beyond the skin perception threshold. Due to the minimized device size, the actuator array can be fabricated with a sufficiently high spatial resolution, which makes the haptic device applicable for skin locations with the highest spatial acuity. A haptic feedback system is demonstrated by employing the developed soft actuators and highly sensitive pressure sensors. Two proof-of-concept applications are developed to illustrate the capability of transferring information related to surface textures and object shapes acquired at the robot side to the user side.

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“…The pitch size demonstrated in the literature can be as small as 13 mm, but this is not small enough for delivering haptic signals to skin areas with high spatial acuities, such as the face and hand 6 . Alternatively, soft actuators have been actively pursued to generate static and dynamic sensations [9][10][11][12] , but facing challenges in mechanical stretchability and actuation performance 7, 10, 13. Soft actuators for haptic sensations can be broadly classified into three types: electrostimulation 14 , externally force driven 6,15 , and those based on stimuli-responsive materials 16 . Electrostimulation is wellexplored for skin-like haptic devices, primarily due to its simplicity in structure 7 .…”

Section: Introductionmentioning

confidence: 99%

“…External force-driven actuators, mainly pneumatic and hydraulic actuators 11 , are widely explored due to their ability to produce constant and large deformations and forces. However, these systems are typically bulky due to the need for auxiliary compressors, reservoirs, pumps, tubing, and valves, which makes them difficult for miniaturization 10,18 .…”

Section: Introductionmentioning

confidence: 99%

Skin-Integrated stretchable actuators toward skin-compatible haptic feedback and closed-loop human-machine interactions

Yao

Chen

et al. 2022

Preprint

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Skin-Integrated haptic interfaces that can relay a wealth of information from the machine side to the user side, leveraging the skin’s versatile haptic perception capabilities, are of great interest. Haptic feedback facilitates a deeper level of human-machine interactions, improves the efficiency, productivity, and safety of machine control, and enables a more immersive engagement in the virtual environment. However, existing haptic devices are not yet able to produce haptic cues that are compatible with the functionality and mechanical properties of the skin. In this work, we present the materials, structures, and applications of stretchable soft actuators for haptic feedback, which can match the perception range, spatial resolution, and stretchability of the skin. Pressure-amplification structures are fabricated using a scalable self-assembly process to ensure an output pressure beyond the skin perception threshold. Due to the minimized device size, the actuator array can be fabricated with a sufficiently high spatial resolution, which makes the haptic device applicable for all skin locations, including locations with the highest spatial acuity. The actuators can be stretched up to the elastic range of the skin without sacrificing the actuation performance. A haptic feedback system is demonstrated by employing the developed soft actuators and highly sensitive pressure sensors. Two proof-of-concept applications are developed to illustrate the capability of transferring information related to surface textures and object shapes acquired at the robot side (using sensing elements) to the user side (using haptic stimulation to the skin surface). The developed haptic feedback system lays the ground for bilateral human-machine interactions in industrial robotics, prosthetics, teleoperation, VR/AR, and other fields where haptic feedback can be beneficial.

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Recent advances in multi-mode haptic feedback technologies towards wearable interfaces

Cited by 42 publications

References 178 publications

Touch IoT enabled by wireless self-sensing and haptic-reproducing electronic skin

Touch IoT enabled by wireless self-sensing and haptic-reproducing electronic skin

Skin-integrated stretchable actuators toward skin-compatible haptic feedback and closed-loop human-machine interactions

Skin-Integrated stretchable actuators toward skin-compatible haptic feedback and closed-loop human-machine interactions

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