A tactile sensing textile with bending-independent pressure perception and spatial acuity

Deng, Jue; Zhuang, Weihua; Bao, Luke; Wu, Xiaoying; Gao, Jingbo; Wang, Bingjie; Sun, Xuemei; Peng, Huisheng

doi:10.1016/j.carbon.2019.04.019

Cited by 31 publications

(16 citation statements)

References 30 publications

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“…Tremendous efforts have been put into developing different methods towards fiber electronics fabrication. These technologies include, but are not limited to, 1) coating [170,171] (such as dip coating, spin coating, doctor blading); 2) spinning [172,173] (such as wet spinning, dry spinning, melt spinning and electrospinning); 3)…”

Section: Discussionmentioning

confidence: 99%

Recent Progress and Perspectives of Thermally Drawn Multimaterial Fiber Electronics

et al. 2019

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Fibers are the building blocks of a broad spectrum of products from textiles to composites, and waveguides to wound dressings. While ubiquitous, the capabilities of fibers have not rapidly increased compared to semiconductor chip technology, for example. Recognizing that fibers lack the composition, geometry, and feature sizes for more functions, we set out years ago to explore the boundaries of fiber functionality. Our approach focused on a particular form of fiber production, thermal-drawing from a preform. This process has been used for producing single material fibers, but by combining metals, insulators, and semiconductors all within a single strand of fiber, an entire world of functionality in fibers has emerged. Fibers with optical, electrical, acoustic, or optoelectronic functionalities can be produced at scale from relatively easy-to-assemble macroscopic preforms. Two significant opportunities now present themselves. First, can we expect that fiber functions escalate in a predictable manner, creating the context for a "Moore's Law" analogue in fibers? Second, as fabrics occupy an enormous surface around our bodies, could fabrics offer valuable service to augment the human body? Towards answering these questions, we detail the materials, performance, and limitations of thermally-drawn fibers in different electronic applications and envision their potential in new fields.

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Section: Discussionmentioning

confidence: 99%

Recent Progress and Perspectives of Thermally Drawn Multimaterial Fiber Electronics

et al. 2019

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“…Recently, several groups have reported bending-insensitive tactile sensors. [18,27,[95][96][97] One effective way to achieve bending insensitivity is to use a porous structure that can accommodate the bending-induced deformation. Lee et al developed a nanofiber-based resistive pressure sensor that detects only the normal pressure, even under complex bending conditions (Figure 7a).…”

Section: Insensitivity To Mechanical and Environmental Conditionsmentioning

confidence: 99%

“…Various designs for flexible tactile sensors that interface with machines have been proposed, including smart gloves, [96,109,180] keyboards, [40] and touch panels. [27,181,182] Choi et al demonstrated a smart glove by integrating fiber-based tactile sensors.…”

Section: Control Interfacesmentioning

confidence: 99%

Recent Progress in Flexible Tactile Sensors for Human‐Interactive Systems: From Sensors to Advanced Applications

et al. 2021

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detection; furthermore, mechanisms or devices to detect other stimuli, such as strain, temperature, and humidity, may be integrated. A tactile feedback system, integrated with a prosthetic hand, was demonstrated in 1974, [2] and since then, a variety of tactile sensors have been actively developed for use in various applications, such as touch screens and robotic hands. Flexible tactile sensors capable of measuring mechanical stimuli via physical contact have attracted significant attention in the field of human-interactive systems. The utilization of tactile information can complement vision and/or sound interaction and provide new functionalities. Recent advancements in micro/nanotechnology, material science, and information technology have resulted in the development of high-performance tactile sensors that reach and even surpass the tactile sensing ability of human skin. Here, important advances in flexible tactile sensors over recent years are summarized, from sensor designs to system-level applications. This review focuses on the representative strategies based on design and material configurations for improving key performance parameters including sensitivity, detection range/linearity, response time/hysteresis, spatial resolution/crosstalk, multidirectional force detection, and insensitivity to other stimuli. System-level integration for practical applications beyond conceptual prototypes and promising applications, such as artificial electronic skin for robotics and prosthetics, wearable controllers for electronics, and bidirectional communication tools, are also discussed. Finally, perspectives on issues regarding further advances are provided.

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“…With the rapid development of the information technology, flexible pressure sensors have been extremely concerned due to their potential in human machine interface, flexible robots, wearing electronic equipment, and flexible electronic skin [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]. Normally, flexible pressure sensors are divided into three types: capacitive, piezoelectric, and piezo-resistive.…”

Section: Introductionmentioning

confidence: 99%

“…Normally, flexible pressure sensors are divided into three types: capacitive, piezoelectric, and piezo-resistive. Among them, piezo-resistive sensor is the most favorite because of its simple manufacturing techniques and easily collecting signal output [2,16,17,18,19].…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Conductive Graphene/Polyurethane Foam Composite and Its Application on Flexible Piezo-Resistive Sensors

Zhong

Ding

et al. 2019

Polymers

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Flexible pressure sensors have attracted tremendous research interests due to their wide applications in wearable electronics and smart robots. The easy-to-obtain fabrication and stable signal output are meaningful for the practical application of flexible pressure sensors. The graphene/polyurethane foam composites are prepared to develop a convenient method for piezo-resistive devices with simple structure and outstanding sensing performance. Graphene oxide was prepared through the modified Hummers method. Polyurethane foam was kept to soak in the obtained graphene oxide aqueous solution and then dried. After that, reduced graphene oxide/polyurethane composite foam has been fabricated under air phase reduction by hydrazine hydrate vapor. The chemical components and micro morphologies of the prepared samples have been observed by using FT-IR and scanning electron microscopy (SEM). The results predicted that the graphene is tightly adhered to the bare surface of the pores. The pressure sensing performance has been also evaluated by measuring the sensitivity, durability, and response time. The results indicate that the value of sensitivity under the range of 0–6 kPa and 6–25 kPa are 0.17 kPa−1 and 0.005 kPa−1, respectively. Cycling stability test has been performed 30 times under three varying pressures. The signal output just exhibits slight fluctuations, which represents the good cycling stability of the pressure sensor. At the same stage, the response time of loading and unloading of 20 g weight turned out to be about 300 ms. These consequences showed the superiority of graphene/polyurethane composite foam while applied in piezo-resistive devices including wide sensitive pressure range, high sensitivity, outstanding durability, and fast response.

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A tactile sensing textile with bending-independent pressure perception and spatial acuity

Cited by 31 publications

References 30 publications

Recent Progress and Perspectives of Thermally Drawn Multimaterial Fiber Electronics

Recent Progress and Perspectives of Thermally Drawn Multimaterial Fiber Electronics

Recent Progress in Flexible Tactile Sensors for Human‐Interactive Systems: From Sensors to Advanced Applications

Facile Fabrication of Conductive Graphene/Polyurethane Foam Composite and Its Application on Flexible Piezo-Resistive Sensors

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