Design of Wearable Finger Sensors for Rehabilitation Applications

Bozali, Beyza; Ghodrat, Sepideh; Jansen, K.M.B.

doi:10.3390/mi14040710

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…Textile sensors, which were integral for the development of smart garments, have attracted increasing attention for use in applications in human–device interfaces [ 1 , 2 , 3 , 4 , 5 ], human health and motion monitoring [ 6 , 7 , 8 , 9 ], sports analytics [ 10 , 11 ], soft robotics [ 12 , 13 ], and physical therapy [ 9 , 14 ]. These sensors can be seamlessly integrated into fabrics [ 6 , 15 ], thereby offering exceptional comfort and versatility.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Role of Yarn Placement in Plated Knit Strain Sensors: A Detailed Study of Their Electromechanical Properties and Applicability in Bending Cycle Monitoring

Kim,

Jun,

et al. 2024

Sensors

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In this study, we explore how the strategic positioning of conductive yarns influences the performance of plated knit strain sensors fabricated using commercial knitting machines with both conductive and non-conductive yarns. Our study reveals that sensors with conductive yarns located at the rear, referred to as ‘purl plated sensors’, exhibit superior performance in comparison to those with conductive yarns at the front, or ‘knit plated sensors’. Specifically, purl plated sensors demonstrate a higher sensitivity, evidenced by a gauge factor ranging from 3 to 18, and a minimized strain delay, indicated by a 1% strain in their electromechanical response. To elucidate the mechanisms behind these observations, we developed an equivalent circuit model. This model examines the role of contact resistance within varying yarn configurations on the sensors’ sensitivity, highlighting the critical influence of contact resistance in conductive yarns subjected to wale-wise stretching on sensor responsiveness. Furthermore, our findings illustrate that the purl plated sensors benefit from the vertical movement of non-conductive yarns, which promotes enhanced contact between adjacent conductive yarns, thereby improving both the stability and sensitivity of the sensors. The practicality of these sensors is confirmed through bending cycle tests with an in situ monitoring system, showcasing the purl plated sensors’ exceptional reproducibility, with a standard deviation of 0.015 across 1000 cycles, and their superior sensitivity, making them ideal for wearable devices designed for real-time joint movement monitoring. This research highlights the critical importance of conductive yarn placement in sensor efficacy, providing valuable guidance for crafting advanced textile-based strain sensors.

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Section: Introductionmentioning

confidence: 99%

Assessing the Role of Yarn Placement in Plated Knit Strain Sensors: A Detailed Study of Their Electromechanical Properties and Applicability in Bending Cycle Monitoring

Kim,

Jun,

et al. 2024

Sensors

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“…Secondly, the stretchability of these sensors enables them to endure deformation and mechanical strain without compromising their functionality. This attribute is highly desirable in applications involving human motion, such as sports monitoring [ 5 ], rehabilitation [ 6 ], and virtual reality interfaces [ 7 ]. The ability of pressure sensors to stretch and bend with the body ensures accurate and reliable measurements, even during dynamic activities.…”

Section: Introductionmentioning

confidence: 99%

Flexible and Stretchable Pressure Sensors: From Basic Principles to State-of-the-Art Applications

Seesaard,

Wongchoosuk

2023

Micromachines

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Flexible and stretchable electronics have emerged as highly promising technologies for the next generation of electronic devices. These advancements offer numerous advantages, such as flexibility, biocompatibility, bio-integrated circuits, and light weight, enabling new possibilities in diverse applications, including e-textiles, smart lenses, healthcare technologies, smart manufacturing, consumer electronics, and smart wearable devices. In recent years, significant attention has been devoted to flexible and stretchable pressure sensors due to their potential integration with medical and healthcare devices for monitoring human activity and biological signals, such as heartbeat, respiratory rate, blood pressure, blood oxygen saturation, and muscle activity. This review comprehensively covers all aspects of recent developments in flexible and stretchable pressure sensors. It encompasses fundamental principles, force/pressure-sensitive materials, fabrication techniques for low-cost and high-performance pressure sensors, investigations of sensing mechanisms (piezoresistivity, capacitance, piezoelectricity), and state-of-the-art applications.

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Customized surface adhesive and wettability properties of conformal electronic devices

Chen,

Lin,

et al. 2024

Mater. Horiz.

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Design of Wearable Finger Sensors for Rehabilitation Applications

Cited by 4 publications

References 24 publications

Assessing the Role of Yarn Placement in Plated Knit Strain Sensors: A Detailed Study of Their Electromechanical Properties and Applicability in Bending Cycle Monitoring

Assessing the Role of Yarn Placement in Plated Knit Strain Sensors: A Detailed Study of Their Electromechanical Properties and Applicability in Bending Cycle Monitoring

Flexible and Stretchable Pressure Sensors: From Basic Principles to State-of-the-Art Applications

Customized surface adhesive and wettability properties of conformal electronic devices

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