Fully Printed Flexible Capacitive Array Tactile Force Sensors with Tunable Sensitivity and Low Crosstalk for Monitoring Human Motion and Sound Signals

Mu, Yuanbin; Cheng, Jiagen; Yang, Weihuang; Wu, Xuanyi; Jin, Ningjing; Liu, Wenjing; Hou, Fujing; Wu, Jiashu; Wang, Huanze; Weng, Binhui; Cheng, Lian; Hao, Dandan; Liu, Chaoran; Zhao, Libo; Dong, Linxi

doi:10.2139/ssrn.4131187

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…Tactile skin is indispensable in robotic applications as it enables robots to perceive the location, timing, and manner of interactive contact with other objects [1][2][3][4][5][6][7][8][9] . Numerous tactile sensor designs have been proposed to measure contact on the sensing surface [10][11][12][13][14] . These designs often utilize various transduction methods such as resistive [15][16][17][18][19] , piezoresistive [20][21][22][23] , capacitive [24][25][26][27] , piezoelectric [28][29][30] , or triboelectric 31,32 .…”

Section: Introductionmentioning

confidence: 99%

Large-area Magnetic Skin for Multi-point and Multi-scale Tactile Sensing with Super-resolution

Zhao,

Hu,

Zhang

et al. 2024

Preprint

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The advancements in tactile sensor technology have found wide-ranging applications in robotic fields, resulting in remarkable achievements in object manipulation and overall human-machine interactions. However, the widespread availability of high-resolution tactile skins remains limited, due to the challenges of incorporating large-sized, robust sensing units and increased wiring complexity. One approach to achieve high-resolution and robust tactile skins is to integrate a limited number of sensor units (taxels) into a flexible surface material and leverage signal processing techniques to achieve super-resolution sensing. Here, we present a magnetic skin consisting of multi-direction magnetized flexible films and a contactless Hall sensor array. The key features of the proposed sensor include the specific magnetization arrangement, K-Nearest Neighbors (KNN) clustering algorithm and convolutional neural network (CNN) model for signal processing. Using only an array of 4*4 taxels, our magnetic skin is capable of achieving super-resolution perception over an area of 44100 mm2, with an average localization error of 1.2 mm. By employing neural network algorithms to decouple the multi-dimensional signals, the skin can achieve multi-point and multi-scale perception. We also demonstrate the promising potentials of the proposed sensor in intelligent control, by simultaneously controlling two vehicles with trajectory mapping on the magnetic skin.

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Section: Introductionmentioning

confidence: 99%

Large-area Magnetic Skin for Multi-point and Multi-scale Tactile Sensing with Super-resolution

Zhao,

Hu,

Zhang

et al. 2024

Preprint

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“…In the Information Era, data acquisition and processing are inseparable from the participation of sensors. They are widely used in robotics [2][3][4][5], motion monitoring [6][7][8][9], medical, human-machine interaction [10], and other fields [11][12][13]. However, traditional tactile sensors rely on external power sources for their power supply, which can lead to problems such as large system size, high cost, and difficult maintenance.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Self-Powered Tactile Sensing for Wearable Electronics

Liu,

Li,

Lai

et al. 2024

Materials

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With the arrival of the Internet of Things era, the demand for tactile sensors continues to grow. However, traditional sensors mostly require an external power supply to meet real-time monitoring, which brings many drawbacks such as short service life, environmental pollution, and difficulty in replacement, which greatly limits their practical applications. Therefore, the development of a passive self-power supply of tactile sensors has become a research hotspot in academia and the industry. In this review, the development of self-powered tactile sensors in the past several years is introduced and discussed. First, the sensing principle of self-powered tactile sensors is introduced. After that, the main performance parameters of the tactile sensors are briefly discussed. Finally, the potential application prospects of the tactile sensors are discussed in detail.

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Fully Printed Flexible Capacitive Array Tactile Force Sensors with Tunable Sensitivity and Low Crosstalk for Monitoring Human Motion and Sound Signals

Cited by 2 publications

References 20 publications

Large-area Magnetic Skin for Multi-point and Multi-scale Tactile Sensing with Super-resolution

Large-area Magnetic Skin for Multi-point and Multi-scale Tactile Sensing with Super-resolution

Recent Advances in Self-Powered Tactile Sensing for Wearable Electronics

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