Flexible pressure sensing film based on ultra-sensitive SWCNT/PDMS spheres for monitoring human pulse signals

2015 ◽  
Vol 3 (27) ◽  
pp. 5436-5441 ◽  
Author(s):  
Yan-Long Tai ◽  
Zhen-Guo Yang
Keyword(s):  
Pressure Sensors ◽  
Pressure Sensing ◽  
Prosthetic Limbs ◽  
Electronic Skin ◽  
Essential Components ◽  
Biomedical Diagnostics ◽  
Healthcare Monitoring ◽  
Flexible Pressure Sensors ◽  
Human Healthcare

Flexible pressure sensors are essential components of an electronic skin for future attractive applications ranging from human healthcare monitoring to biomedical diagnostics to robotic skins to prosthetic limbs.

Multi length scale hierarchical architecture overcoming pressure sensing range-speed tradeoff for flexible pressure sensors

2021 ◽  
Author(s):  
Qiong Tian ◽  
Wenrong Yan ◽  
Tianding CHEN ◽  
Derek Ho
Keyword(s):  
Biomedical Applications ◽  
Pressure Sensors ◽  
Human Machine Interface ◽  
Hierarchical Architecture ◽  
Soft Robotics ◽  
Length Scale ◽  
Pressure Sensing ◽  
Sensing Range ◽  
Machine Interface ◽  
Flexible Pressure Sensors

Pressure sensing electronics have gained great attention in human-machine interface, soft robotics, and wearable biomedical applications. However, existing sensor architectures are inadequate in overcoming the classic tradeoff between sensing range,...

Flexible hemispheric microarrays of highly pressure-sensitive sensors based on breath figure method

Nanoscale ◽  
2018 ◽  
Vol 10 (22) ◽  
pp. 10691-10698 ◽  
Author(s):  
Zhihui Wang ◽  
Ling Zhang ◽  
Jin Liu ◽  
Hao Jiang ◽  
Chunzhong Li
Keyword(s):  
Pressure Sensor ◽  
Pressure Sensors ◽  
Pressure Sensing ◽  
Sensing Range ◽  
Pressure Sensitive ◽  
Breath Figure ◽  
Breath Figure Method ◽  
Flexible Pressure Sensors

Flexible pressure sensors with interlocked hemispheric microstructures are prepared by a novel breath figure strategy. The subtle microstructure remarkably improves the sensitivity and pressure sensing range of the pressure sensor.

Flexible Capacitive Pressure Sensors for Wearable Electronics

2022 ◽  
Author(s):  
Haizhen Wang ◽  
Zhen Li ◽  
Zeyi Liu ◽  
Tianyou Shan ◽  
Jikun Fu ◽  
...  
Keyword(s):  
Health Monitoring ◽  
Pressure Sensors ◽  
Wearable Electronics ◽  
Electronic Skin ◽  
Flexible Pressure Sensors

Flexible pressure sensors have attracted more and more attention recently due to their broad applications, such as electronic skin and wearable electronics for health monitoring. Among them, capacitive flexible pressure...

Solvent-free fabrication of multi-walled carbon nanotube based flexible pressure sensors for ultra-sensitive touch pad and electronic skin applications

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95836-95845 ◽  
Author(s):  
Parikshit Sahatiya ◽  
Sushmee Badhulika
Keyword(s):  
Carbon Nanotube ◽  
User Interface ◽  
Electronic Devices ◽  
Pressure Sensors ◽  
Solvent Free ◽  
Electronic Skin ◽  
Multi Walled Carbon Nanotube ◽  
Mechanical Pressing ◽  
Flexible Pressure Sensors

Schematic of the MWCNTs based ultrasensitive touch pad by novel rolling pin and pre-compaction mechanical pressing and its applicability as a user interface in modern electronic devices.

scholarly journals Flexible and Transparent Pressure Sensor Based on CNTs Film Microstructure

2021 ◽  
Author(s):  
Liangliang Liu ◽  
Xin Yan
Keyword(s):  
Pressure Sensor ◽  
Production Cost ◽  
Composite Electrode ◽  
Pressure Sensors ◽  
Wearable Devices ◽  
Capacitive Pressure Sensor ◽  
Detection Range ◽  
Electronic Skin ◽  
Film Microstructure ◽  
Flexible Pressure Sensors

Abstract In recent years, capacitive flexible pressure sensors have been widely studied in electronic skin and wearable devices. The traditional capacitive pressure sensor has a higher production cost due to micro-nano machining technology such as lithography. This paper presents a flexible transparent capacitive pressure sensor based on a PDMS/CNT composite electrode, simple, transparent, flexible, and arrays without lithography. The sensitivity of the device has been tested to 0.0018 kpa -1 with a detection range of 0-30 kPa. The sensor is capable of rapidly detecting different pressures and remains stable after 100 load-unload tests.

scholarly journals Modeling and experimental studies of capacitive pressure sensors with microstructured dielectric layers

2019 ◽  
Vol 52 (5-6) ◽  
pp. 657-664
Author(s):  
Yanmin Zhou ◽  
Zhe Yan ◽  
Bin He ◽  
Zhipeng Wang ◽  
Yafei Wang
Keyword(s):  
Finite Element Method ◽  
Dielectric Layer ◽  
Experimental Studies ◽  
Pressure Sensors ◽  
Pressure Sensing ◽  
Dielectric Layers ◽  
Electronic Skin ◽  
Mechanical Models ◽  
Application Prospects ◽  
Artificial Prosthesis

Electronic skin (e-skin) has shown great application prospects in many fields due to its multiple advantages. Previous studies have illustrated that the structure with a dielectric layer sandwiched between two electrodes had good pressure-sensing abilities, and microstructures in the dielectric layer could improve the sensitivity. In this paper, we proposed mechanical models of e-skin sensing unit with different microstructures (flat, trapezoidal, half-cylinder, and pyramids) in the dielectric layer. Then, we performed finite element method simulations and experiments to validate the model. Finally, we demonstrated its application as the pressure-sensing unit for human hands, showing its great potentials in sensors of artificial prosthesis or soft robots in the future.

Crisscross-designed piezoresistive strain sensors with a cracked microtectonic architecture for direction-selective tensile perception

2018 ◽  
Vol 6 (41) ◽  
pp. 11170-11177 ◽  
Author(s):  
Hayeong Jang ◽  
Seolhee Baek ◽  
Giheon Choi ◽  
Seungtaek Oh ◽  
Ho Sun Lim ◽  
...  
Keyword(s):  
Environmental Risk ◽  
Strain Sensors ◽  
Research Attention ◽  
Risk Detection ◽  
Electronic Skin ◽  
Considerable Research ◽  
Healthcare Monitoring ◽  
Human Healthcare

Flexible strain sensors are a key component of electronic skin (e-skin), a technology that is currently receiving considerable research attention with a view to future applications ranging from human healthcare monitoring to robotic skins and environmental risk detection.

scholarly journals Flexible Pressure Sensors with a Wide Detection Range Based on Self-Assembled Polystyrene Microspheres

Sensors ◽  
2019 ◽  
Vol 19 (23) ◽  
pp. 5194
Author(s):  
Wufan Chen ◽  
Bingwei Wang ◽  
Qianbing Zhu ◽  
Xin Yan
Keyword(s):  
Pressure Sensor ◽  
Pressure Sensors ◽  
Wearable Devices ◽  
Large Area ◽  
Polystyrene Microsphere ◽  
Detection Range ◽  
Electronic Skin ◽  
Self Assembled ◽  
Flexible Pressure Sensors ◽  
Wide Pressure

Flexible pressure sensors are important components of electronic skin and flexible wearable devices. Most existing piezoresistive flexible pressure sensors have obtained high sensitivities, however, they have relatively small pressure detection ranges. Here, we report flexible pressure sensors with a wide detection range using polydimethylsiloxane (PDMS) as the substrate, carbon nanotube films as the electrode material, and self-assembled polystyrene microsphere film as the microstructure layer. The obtained pressure sensor had a sandwich structure, and had a wide pressure detection range (from 4 kPa to 270 kPa), a sensitivity of 2.49 kPa−1, and a response time of tens of milliseconds. Two hundred load–unload cycles indicated that the device had good stability. In addition, the sensor was obtained by large-area fabrication with a low power consumption. This pressure sensor is expected to be widely used in applications such as electronic skin and flexible wearable devices.

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