scholarly journals Directly printed wearable electronic sensing textiles towards human–machine interfaces

2018 ◽  
Vol 6 (47) ◽  
pp. 12841-12848 ◽  
Author(s):  
Xinqin Liao ◽  
Weitao Song ◽  
Xiangyu Zhang ◽  
Hua Huang ◽  
Yongtian Wang ◽  
...  
Keyword(s):  
Strain Sensors ◽  
Human Machine Interfaces ◽  
Gesture Control ◽  
Wearable Electronic ◽  
Electronic Sensing

An intelligent glove assembled with stencil printed and ultrasensitive textile strain sensors was prepared for wireless gesture control.

scholarly journals One-Step Laser Encapsulation of Nano-Cracking Strain Sensors

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2673 ◽  
Author(s):  
Chan Park ◽  
Hyunsuk Jung ◽  
Hyunwoo Lee ◽  
Sunguk Hong ◽  
Hyonguk Kim ◽  
...  
Keyword(s):  
Electronic Devices ◽  
Strain Sensors ◽  
Harsh Environments ◽  
Electrical Characteristics ◽  
Flexible Sensors ◽  
One Step ◽  
Wearable Electronic ◽  
Flexible Strain Sensor ◽  
Wearable Electronic Devices ◽  
Encapsulation Methods

Development of flexible strain sensors that can be attached directly onto the skin, such as skin-mountable or wearable electronic devices, has recently attracted attention. However, such flexible sensors are generally exposed to various harsh environments, such as sweat, humidity, or dust, which cause noise and shorten the sensor lifetimes. This study reports the development of a nano-crack-based flexible sensor with mechanically, thermally, and chemically stable electrical characteristics in external environments using a novel one-step laser encapsulation (OLE) method optimized for thin films. The OLE process allows simultaneous patterning, cutting, and encapsulating of a device using laser cutting and thermoplastic polymers. The processes are simplified for economical and rapid production (one sensor in 8 s). Unlike other encapsulation methods, OLE does not degrade the performance of the sensor because the sensing layers remain unaffected. Sensors protected with OLE exhibit mechanical, thermal, and chemical stability under water-, heat-, dust-, and detergent-exposed conditions. Finally, a waterproof, flexible strain sensor is developed to detect motions around the eye, where oil and sweat are generated. OLE-based sensors can be used in several applications that are exposed to a large amount of foreign matter, such as humid or sweaty environments.

Recent advances on the fabrication methods of nanocomposite yarn-based strain sensor

2021 ◽  
Vol 10 (1) ◽  
pp. 221-236
Author(s):  
Xiaoning Tang ◽  
Deshan Cheng ◽  
Jianhua Ran ◽  
Daiqi Li ◽  
Chengen He ◽  
...  
Keyword(s):  
Chemical Deposition ◽  
Strain Sensor ◽  
Dip Coating ◽  
Strain Sensors ◽  
Layer By Layer ◽  
Recent Advances ◽  
Elastic Filament ◽  
Highly Stretchable ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

Abstract Yarn-based strain sensor is an emerging candidate for the fabrication of wearable electronic devices. The intrinsic properties of yarn, such as excellent lightweight, flexibility, stitchability, and especially its highly stretchable performance, stand out the yarn-based strain sensor from conventional rigid sensors in detection of human body motions. Recent advances in conductive materials and fabrication methods of yarn-based strain sensors are well reviewed and discussed in this work. Coating techniques including dip-coating, layer by layer assemble, and chemical deposition for deposition of conductive layer on elastic filament were first introduced, and fabrication technology to incorporate conductive components into elastic matrix via melt extrusion or wet spinning was reviewed afterwards. Especially, the recent advances of core–sheath/wrapping yarn strain sensor as-fabricated by traditional spinning technique were well summarized. Finally, promising perspectives and challenges together with key points in the development of yarn strain sensors were presented for future endeavor.

From design to applications of stimuli-responsive hydrogel strain sensors

2020 ◽  
Vol 8 (16) ◽  
pp. 3171-3191 ◽  
Author(s):  
Dong Zhang ◽  
Baiping Ren ◽  
Yanxian Zhang ◽  
Lijian Xu ◽  
Qinyuan Huang ◽  
...  
Keyword(s):  
Functional Materials ◽  
Material Design ◽  
Strain Sensors ◽  
Stimuli Responsive ◽  
Human Machine Interfaces

Stimuli-responsive hydrogel strain sensors that synergize the advantages of both hydrogel and smart functional materials have attracted increasing interest from material design to emerging applications in health monitors and human–machine interfaces.

Characteristics of Discharge Currents Measured through Body-Attached Metal for Modeling ESD from Wearable Electronic Devices

2016 ◽  
Vol E99.B (1) ◽  
pp. 186-191 ◽  
Author(s):  
Takeshi ISHIDA ◽  
Fengchao XIAO ◽  
Yoshio KAMI ◽  
Osamu FUJIWARA ◽  
Shuichi NITTA
Keyword(s):  
Electronic Devices ◽  
Wearable Electronic ◽  
Wearable Electronic Devices

Modeling of Contact Patch in Dual-Chamber Pneumatic Tires

2018 ◽  
Vol 46 (2) ◽  
pp. 78-92 ◽  
Author(s):  
A. I. Kubba ◽  
G. J. Hall ◽  
S. Varghese ◽  
O. A. Olatunbosun ◽  
C. J. Anthony
Keyword(s):  
Strain Sensors ◽  
Surface Strain ◽  
Wireless Data ◽  
Data Logger ◽  
Dual Chamber ◽  
Piezoelectric Polymer ◽  
Pure Rolling ◽  
Piezoelectric Elements ◽  
Strain Data ◽  
Deformation Patterns

ABSTRACT This study presents an investigation of the inner tire surface strain measurement by using piezoelectric polymer transducers adhered on the inner liner of the tire, acting as strain sensors in both conventional and dual-chamber tires. The piezoelectric elements generate electrical charges when strain is applied. The inner liner tire strain can be found from the generated charge. A wireless data logger was employed to measure and transmit the measured signals from the piezoelectric elements to a PC to store and display the readout signals in real time. The strain data can be used as a monitoring system to recognize tire-loading conditions (e.g., traction, braking, and cornering) in smart tire technology. Finite element simulations, using ABAQUS, were employed to estimate tire deformation patterns in both conventional and dual-chamber tires for pure rolling and steady-state cornering conditions for different inflation pressures to simulate on-road and off-road riding tire performances and to compare with the experimental results obtained from both the piezoelectric transducers and tire test rig.

Usage of Fiber Grating Strain Sensors for Diagnostics of Composite Pressure Vessels

2003 ◽  
Author(s):  
E Udd ◽  
M. Kunzler ◽  
S. Calvert ◽  
S. Kreger
Keyword(s):  
Pressure Vessels ◽  
Strain Sensors ◽  
Fiber Grating ◽  
Composite Pressure Vessels
Sign in / Sign up

Export Citation Format

Share Document