scholarly journals MWCNT-coated cotton yarn array for piezoresistive force and bending sensor applications in Internet of Things systems

2021 ◽  
pp. 113209
Author(s):  
Dae-Young Jeon ◽  
So Jeong Park ◽  
Tae Yoon Lee ◽  
Gyu-Tae Kim
Keyword(s):  
Internet Of Things ◽  
Cotton Yarn ◽  
Sensor Applications ◽  
Bending Sensor ◽  
Coated Cotton

scholarly journals MWCNT-Coated Cotton Yarn Array For Piezoresistive Force and Bending Sensor Applications in Internet of Things Systems

2021 ◽  
Author(s):  
Dae-Young Jeon ◽  
So Jeong Park ◽  
Tae Yoon Lee ◽  
Gyu-Tae Kim
Keyword(s):  
Internet Of Things ◽  
Data Storage ◽  
Industrial Revolution ◽  
Low Cost ◽  
New Technology ◽  
Force Sensor ◽  
Time Data ◽  
Sensor Applications ◽  
Sensing Material ◽  
Bending Sensor

Abstract Advanced sensors based on the Internet of Things (IoT) are bringing new technology and productivity paradigms to the era of the fourth industrial revolution. Here, piezoresistive force and bending sensors with good performance (sensitivity ≈ 0.3 kPa−1 and Δnormalized resistance/Δcurvature ≈ 1.5 cm) were fabricated by using perpendicularly aligned multi-walled (MW) carbon nanotube-coated yarn (CNT-CY) arrays, which were obtained from a simple dipping-and-drying method. Verification was performed using a proof-of-concept force sensor matrix with an Arduino open-source microcontroller. In addition, a force sensor combined with real-time data storage in Google Cloud was successfully demonstrated. This work provides important information for the development of a robust, low-cost, and easy-to-manufacture IoT platform with MWCNT-based composites as an active sensing material.

scholarly journals Single-Wall Carbon Nanotube-Coated Cotton Yarn for Electrocardiography Transmission

Micromachines ◽  
2018 ◽  
Vol 9 (3) ◽  
pp. 132 ◽  
Author(s):  
Yuliang Zhao ◽  
Yuying Cao ◽  
Junshan Liu ◽  
Zhikun Zhan ◽  
Xiaoli Li ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cotton Yarn ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Coated Cotton

Electromechanical properties of CNT-coated cotton yarn for electronic textile applications

2010 ◽  
Vol 20 (1) ◽  
pp. 015004 ◽  
Author(s):  
Tae June Kang ◽  
Ajeong Choi ◽  
Dai-Hong Kim ◽  
Kyoungcheol Jin ◽  
Dong Kyun Seo ◽  
...  
Keyword(s):  
Cotton Yarn ◽  
Electromechanical Properties ◽  
Electronic Textile ◽  
Coated Cotton

Vapor Phase Method for Preparation of Polyacrylonitrile Coated Cotton Yarn and Physical Properties of the Product

1957 ◽  
Vol 27 (12) ◽  
pp. 975-982 ◽  
Author(s):  
Chester H. Haydel ◽  
Hermann J. Janssen ◽  
Jeuel F. Seal ◽  
Henry L. E. Vix ◽  
Edward A. Gastrock
Keyword(s):  
Physical Properties ◽  
Vapor Phase ◽  
Phase Method ◽  
Cotton Yarn ◽  
Coated Cotton

scholarly journals Bend loss fiber optics design based on sinusoidal and ellipse configurations

2021 ◽  
Vol 51 (3) ◽  
Author(s):  
Noor Azie Azura Mohd Arif ◽  
Dilla Durhya Burhanuddin ◽  
Sahbudin Shaari ◽  
Abang Annuar Ehsan
Keyword(s):  
Fiber Optics ◽  
Optical Fibers ◽  
Optical Loss ◽  
Single Mode ◽  
Fiber Optic Sensor ◽  
Curvature Radius ◽  
Sensor Applications ◽  
Bending Loss ◽  
Bending Radius ◽  
Bending Sensor

Bending losses in optical fibers comprise one of the extrinsic attenuations that contribute to optical loss and they are essential for optical fiber bending sensor applications. This work investigated the optical loss in a standard single-mode step-index fiber optics due to fiber bending at 1550 nm wavelength. Variations in macro-bending loss with curvature radius and turn number have been measured. Curvature radius and turn number are examined for sinusoidal and elliptical shaped bending configurations. It has been found that the loss increases as the bending radius and number of turns increase. The result also showed that elliptical shaped bending configuration produced more loss in contrast to that of sinusoidal shaped at bending angles of 180° and 360°. The study on the macro-bending loss in terms of curvature radius and turn number for both elliptical and sinusoidal shaped bending configurations is beneficial for future fiber optic sensor applications.

Enabling Cities to Harness the Full Potential of the Internet of Things

10.28945/4861 ◽  
2021 ◽  
Vol 6 ◽  
pp. 001-025
Author(s):  
Julia A Hamilton ◽  
Matthew Mullarkey
Keyword(s):  
Internet Of Things ◽  
Smart City ◽  
Education Programme ◽  
City Council ◽  
Full Potential ◽  
Major Barrier ◽  
Sensor Applications ◽  
Mass Migration ◽  
Critical Issues ◽  
The City

Jamie Cudden, the Smart City Programme Manager for Dublin City Council (DCC), had just participated in the most recent review of the sensor-enabled smart gully project in Dublin city. Tasked with exploring how technology can help address city challenges to create a ‘smarter’ Dublin, Jamie wondered why more smart sensor applications were not being identified and deployed by DCC departments. He knew that smart sensors existed in the commercial marketplace for everything that could be measured and believed that most city services could be improved with better, real-time measurement. What he could not understand was why more sensor-enabled connected systems were not being deployed by operational service teams across the city. Over the last three years Smart Docklands, a smart city testbed in the Dublin Docklands, had facilitated a broad range of projects with DCC staff utilising Internet of Things (IoT) technology. While these projects demonstrated the value of IoT for specific applications – such as blocked gullies [Exhibit 1] and waste management - there still remained a relatively low utilisation of IoT across DCC’s operational services. Jamie thought, if IoT is really a better way of addressing these issues, why was there not a mass migration towards its use across the Council? Through talking with his colleagues, Jamie realised that a major barrier to IoT deployments was a lack of knowledge of what IoT was and how it would help address the challenges the Council was trying to solve. How would Jamie energise his current and future peers to identify more ways to use technology to connect the city? How would they learn about the power of IoT connected devices? How might each city department generate innovative smart solutions to identify and respond to critical issues with the infrastructure and services of the city? Jamie had recently attended an ‘Introduction to IoT’ workshop for DCC staff at Dogpatch Labs. The workshop highlighted that educating the city’s staff about IoT could encourage a move towards more sensor driven city operations. With this, he was now faced with the challenge of how best to design and deliver an education programme on a larger scale so cities across Ireland could capitalise on the on the benefits of IoT.

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