scholarly journals Electronic skin as wireless human-machine interfaces for robotic VR

2022 ◽  
Vol 8 (2) ◽  
Author(s):  
Yiming Liu ◽  
Chunki Yiu ◽  
Zhen Song ◽  
Ya Huang ◽  
Kuanming Yao ◽  
...  
Keyword(s):  
Human Body ◽  
Closed Loop ◽  
Haptic Feedback ◽  
Human Machine Interfaces ◽  
Electronic Skin

The closed-loop HMI system could compliantly interface with human body for teleoperating various robotics with haptic feedback.

scholarly journals Miniaturization of mechanical actuators in skin-integrated electronics for haptic interfaces

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Dengfeng Li ◽  
Jiahui He ◽  
Zhen Song ◽  
Kuanming Yao ◽  
Mengge Wu ◽  
...  
Keyword(s):  
Human Body ◽  
Closed Loop ◽  
Haptic Feedback ◽  
Haptic Interfaces ◽  
Accuracy Rate ◽  
Daily Lives ◽  
Integrated Electronics ◽  
Electronic Skin ◽  
Tactile Sensations ◽  
Tactile Enhancement

AbstractSkin-integrated electronics, also known as electronic skin (e-skin), are rapidly developing and are gradually being adopted in biomedical fields as well as in our daily lives. E-skin capable of providing sensitive and high-resolution tactile sensations and haptic feedback to the human body would open a new e-skin paradigm for closed-loop human–machine interfaces. Here, we report a class of materials and mechanical designs for the miniaturization of mechanical actuators and strategies for their integration into thin, soft e-skin for haptic interfaces. The mechanical actuators exhibit small dimensions of 5 mm diameter and 1.45 mm thickness and work in an electromagnetically driven vibrotactile mode with resonance frequency overlapping the most sensitive frequency of human skin. Nine mini actuators can be integrated simultaneously in a small area of 2 cm × 2 cm to form a 3 × 3 haptic feedback array, which is small and compact enough to mount on a thumb tip. Furthermore, the thin, soft haptic interface exhibits good mechanical properties that work properly during stretching, bending, and twisting and therefore can conformally fit onto various parts of the human body to afford programmable tactile enhancement and Braille recognition with an accuracy rate over 85%.

Torque Control of Electrorheological Fluidic Resistive Actuators for Haptic Vehicular Instrument Controls

2005 ◽  
Vol 128 (2) ◽  
pp. 216-226 ◽  
Author(s):  
M. A. Vitrani ◽  
J. Nikitczuk ◽  
G. Morel ◽  
C. Mavroidis ◽  
B. Weinberg
Keyword(s):  
Electric Fields ◽  
Closed Loop ◽  
Force Feedback ◽  
Haptic Feedback ◽  
Control Device ◽  
Torque Control ◽  
Feedback Mechanisms ◽  
Feedforward Loop ◽  
Integral Controller ◽  
Proportional Integral Controller

Force-feedback mechanisms have been designed to simplify and enhance the human-vehicle interface. The increase in secondary controls within vehicle cockpits has created a desire for a simpler, more efficient human-vehicle interface. By consolidating various controls into a single, haptic feedback control device, information can be transmitted to the operator, without requiring the driver’s visual attention. In this paper, the experimental closed loop torque control of electro-rheological fluids (ERF) based resistive actuators for haptic applications is performed. ERFs are liquids that respond mechanically to electric fields by changing their properties, such as viscosity and shear stress electroactively. Using the electrically controlled rheological properties of ERFs, we developed resistive-actuators for haptic devices that can resist human operator forces in a controlled and tunable fashion. In this study, the ERF resistive-actuator analytical model is derived and experimentally verified and accurate closed loop torque control is experimentally achieved using a non-linear proportional integral controller with a feedforward loop.

On‐Skin Stimulation Devices for Haptic Feedback and Human–Machine Interfaces

2021 ◽  
pp. 2100452
Author(s):  
Wei Guo ◽  
Yijia Hu ◽  
Zhouping Yin ◽  
Hao Wu
Keyword(s):  
Haptic Feedback ◽  
Human Machine Interfaces

Electronic Skin for Closed-Loop Systems

ACS Nano ◽  
2019 ◽  
Vol 13 (11) ◽  
pp. 12287-12293 ◽  
Author(s):  
Chunfeng Wang ◽  
Caofeng Pan ◽  
Zhonglin Wang
Keyword(s):  
Closed Loop ◽  
Closed Loop Systems ◽  
Electronic Skin

scholarly journals Biofuel-powered soft electronic skin with multiplexed and wireless sensing for human-machine interfaces

2020 ◽  
Vol 5 (41) ◽  
pp. eaaz7946 ◽  
Author(s):  
You Yu ◽  
Joanna Nassar ◽  
Changhao Xu ◽  
Jihong Min ◽  
Yiran Yang ◽  
...  
Keyword(s):  
Human Body ◽  
Power Efficiency ◽  
Near Field ◽  
Three Dimensional ◽  
Biofuel Cells ◽  
Physical Parameters ◽  
Power Intensity ◽  
Electronic Skin ◽  
Self Powered ◽  
Body Self

Existing electronic skin (e-skin) sensing platforms are equipped to monitor physical parameters using power from batteries or near-field communication. For e-skins to be applied in the next generation of robotics and medical devices, they must operate wirelessly and be self-powered. However, despite recent efforts to harvest energy from the human body, self-powered e-skin with the ability to perform biosensing with Bluetooth communication are limited because of the lack of a continuous energy source and limited power efficiency. Here, we report a flexible and fully perspiration-powered integrated electronic skin (PPES) for multiplexed metabolic sensing in situ. The battery-free e-skin contains multimodal sensors and highly efficient lactate biofuel cells that use a unique integration of zero- to three-dimensional nanomaterials to achieve high power intensity and long-term stability. The PPES delivered a record-breaking power density of 3.5 milliwatt·centimeter−2 for biofuel cells in untreated human body fluids (human sweat) and displayed a very stable performance during a 60-hour continuous operation. It selectively monitored key metabolic analytes (e.g., urea, NH4+, glucose, and pH) and the skin temperature during prolonged physical activities and wirelessly transmitted the data to the user interface using Bluetooth. The PPES was also able to monitor muscle contraction and work as a human-machine interface for human-prosthesis walking.

scholarly journals Transduction Mechanisms, Micro-Structuring Techniques, and Applications of Electronic Skin Pressure Sensors: A Review of Recent Advances

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4407 ◽  
Author(s):  
Andreia dos Santos ◽  
Elvira Fortunato ◽  
Rodrigo Martins ◽  
Hugo Águas ◽  
Rui Igreja
Keyword(s):  
Health Monitoring ◽  
Pressure Sensors ◽  
Structured Materials ◽  
Human Machine Interfaces ◽  
Electronic Skin ◽  
Monitoring Applications ◽  
Transduction Mechanisms ◽  
Skin Pressure ◽  
Micro Structuring ◽  
General Adoption

Electronic skin (e-skin), which is an electronic surrogate of human skin, aims to recreate the multifunctionality of skin by using sensing units to detect multiple stimuli, while keeping key features of skin such as low thickness, stretchability, flexibility, and conformability. One of the most important stimuli to be detected is pressure due to its relevance in a plethora of applications, from health monitoring to functional prosthesis, robotics, and human-machine-interfaces (HMI). The performance of these e-skin pressure sensors is tailored, typically through micro-structuring techniques (such as photolithography, unconventional molds, incorporation of naturally micro-structured materials, laser engraving, amongst others) to achieve high sensitivities (commonly above 1 kPa−1), which is mostly relevant for health monitoring applications, or to extend the linearity of the behavior over a larger pressure range (from few Pa to 100 kPa), an important feature for functional prosthesis. Hence, this review intends to give a generalized view over the most relevant highlights in the development and micro-structuring of e-skin pressure sensors, while contributing to update the field with the most recent research. A special emphasis is devoted to the most employed pressure transduction mechanisms, namely capacitance, piezoelectricity, piezoresistivity, and triboelectricity, as well as to materials and novel techniques more recently explored to innovate the field and bring it a step closer to general adoption by society.

Ultrasensitive micro/nanocrack-based graphene nanowall strain sensors derived from the substrate's Poisson's ratio effect

2020 ◽  
Vol 8 (20) ◽  
pp. 10310-10317
Author(s):  
Hongyan Sun ◽  
Chen Ye ◽  
Gang Zhao ◽  
Huan Zhang ◽  
Zhiduo Liu ◽  
...  
Keyword(s):  
Thin Film ◽  
Human Body ◽  
Poisson’S Ratio ◽  
Strain Sensors ◽  
Poisson's Ratio ◽  
Ratio Effect ◽  
Electronic Skin ◽  
Acoustic Signature ◽  
Signature Recognition ◽  
Ultrahigh Sensitivity

Thin film strain sensors composed of GNWs grown by MPCVD, showing ultrahigh sensitivity which can be applied for acoustic signature recognition, as well as electronic skin devices to detect both subtle and large motions of the human body.

Closed-Loop Vibratory Haptic Feedback in Upper-Limb Prosthetic Users

2014 ◽  
Vol 26 (3) ◽  
pp. 120-127 ◽  
Author(s):  
Pravin Chaubey ◽  
Teri Rosenbaum-Chou ◽  
Wayne Daly ◽  
David Boone
Keyword(s):  
Upper Limb ◽  
Closed Loop ◽  
Haptic Feedback
Sign in / Sign up

Export Citation Format

Share Document