Capacitive tactile sensor for angle detection and its accuracy study

Chung, Yi‐Chang; Chuang, Shih-Te; Chen, Tsun-Yi; Lo, Cheng‐Yao; Chen, Rongshun

doi:10.1109/jsen.2016.2583544

Cited by 23 publications

(4 citation statements)

References 19 publications

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“…In a capacitor, its capacitance ( C ) is governed by the permittivity ( ε ), overlapping area ( A ), and distance ( d ) between two electrodes if special conditions, such as the fringe effect are neglected, as described in (1). Although many studies have considered other structural modifications of capacitance by, for example, using porous dielectric 12 , hollow structure 13 , or reducing the rigidity of the solid dielectric 14 , capacitance variations are considered controllable only by those three parameters in most cases. Consequently, if the material property or dimension changes owing to the application of forces, the capacitance changes according to (1).…”

Section: Resultsmentioning

confidence: 99%

Wearable and wireless performance evaluation system for sports science with an example in badminton

Zheng

Wang

Chen

et al. 2022

Sci Rep

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Two capacitive sensing units were designed, fabricated, and embedded into two corresponding fingerstalls through microelectronic and additive manufacturing with flexible materials and ergonomic considerations in this study. The sensing units were routed to an adaptor, which in turn was routed to a transmission port (comprising a signal converter and a Bluetooth module), realizing a wearable and wireless force sensing system for sports science applications as the objective. The collected capacitive signals were converted through a preliminarily established database, indicating local force distributions on finger segments. Practical examinations with badminton actions (forehand cross-net shots) were conducted by players to show the effectiveness of the proposed system as an application example. Statistical and quantified results reflected the visual observations on valid shots (67% and 39% for the professional and amateur players, respectively) and well-controlled racket-holding attitude (19.69% and 35.31% force application difference between the first two segments of the index finger of the professional and amateur player, respectively). These proved that the proposed system outperforms existing similar systems in the market and is able to not only classify players with different skill levels but also distinguish attitude stability and controllability, showing scientific evidence in sports science for the first time.

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Section: Resultsmentioning

confidence: 99%

Wearable and wireless performance evaluation system for sports science with an example in badminton

Zheng

Wang

Chen

et al. 2022

Sci Rep

Self Cite

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“…The capacitive sensors are usually composed of two metallic electrodes with dielectric materials in between [23]. The capacitive pressure sensors give electrical responses as shown in equation (1) in which C, ε, A, and d are capacitance, permittivity, electrode overlapping area, and distance of two electrodes, respectively [39]:…”

Section: Capacitive Sensorsmentioning

confidence: 99%

Recent advances in flexible force sensors and their applications: a review

Chen¹,

Pancham²,

Mukherjee³

et al. 2022

Flex. Print. Electron.

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In this paper, five sensing mechanisms including capacitive, piezoresistive, inductive, piezoelectric, and optical are reviewed in details with representative literature. Basic functions of normal force, shear force, shear angle, torsional angle, rotational angle; and characteristics in sensitivity, dynamic window, and spatial resolution are discussed and categorized clearly in this article. In addition, materials used in the flexible force sensors for electrodes, substrates, and deformable dielectrics are highlighted and summarized. Furthermore, structural design, specifications of sensitivity, spatial resolution, dynamic range and cyclic life are also unambiguously outlined. Meanwhile, key design considerations are listed and evaluated in this review to indicate major contributions to the characteristics of the flexible force sensors. Notable challenges, potential business, and examples commercial players in the market are listed at the end of this manuscript. This article offers a stepping stone for those who plan to enter the flexible force sensor fields by revisiting the outcomes from the past decades.

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“…Therefore, a flexible sensor with three-dimensional force sensing capability is required. The flexible three-dimensional force sensors can be simply recognized as piezoresistive type [16][17][18][19], capacitive type [20][21][22][23], and piezoelectric type [24] sensors, according to the principle of signal generation. Compared to the piezoelectric sensors and the capacitive sensors, the piezoresistive sensors have the advantages of simple structure and manufacturing process, which make it easier to produce and apply in practice [25].…”

Section: Introductionmentioning

confidence: 99%

Flexible three-dimensional force sensor of high sensing stability with bonding and supporting composite structure for smart devices

Wang

Lin

et al. 2021

Smart Mater. Struct.

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Characteristics, such as large measurement range, good repeatability and stability, are the guarantee for a wide application of flexible three-dimensional force sensors in robots and other smart devices. In this research, a flexible three-dimensional force sensor is presented, whose structure includes force-sensitive cells, fixed under the bump and a support layer, filled around the force-sensitive cells. This setup allows the sensor to quickly recover, after the force is released, to ensure its excellent performance. The production method is very simple and has the advantage of large-scale and low-cost manufacturing. The sensor exhibited good repeatability and stability, after 25 000 cycles of loading and releasing, under 8 N force. Meanwhile, it has a large measuring range, which is 0-15 N in the direction of normal force and 0-5.5 N in the direction of shear force. The sensitivity of the sensor in the x, y, and z directions is 1.

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Capacitive tactile sensor for angle detection and its accuracy study

Cited by 23 publications

References 19 publications

Wearable and wireless performance evaluation system for sports science with an example in badminton

Wearable and wireless performance evaluation system for sports science with an example in badminton

Recent advances in flexible force sensors and their applications: a review

Flexible three-dimensional force sensor of high sensing stability with bonding and supporting composite structure for smart devices

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