A flexible pressure-sensitive array based on soft substrate

Mei, Haixia; Wang, Rui; wang, Ziying; Feng, Jianchao; Xia, Yan; Zhang, Tong

doi:10.1016/j.sna.2014.11.014

Cited by 26 publications

(16 citation statements)

References 32 publications

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“…CB/SR displays different electrical behaviors under the loading of pressure and temperature. The conduction through the bulk of CB/SR is controlled by conduction over a number of paths of randomly formed chains of CB . R of CB/SR is the total of individual R s for the conductive path at each point of contact.…”

Section: Resultsmentioning

confidence: 95%

Transfer function and working principle of a pressure/temperature sensor based on carbon black/silicone rubber composites

Liu

Huang

et al. 2015

J of Applied Polymer Sci

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Pressure/temperature sensitive silicon rubber (SR) filled with carbon black (CB) was prepared by a liquid mixing method. The transfer function of a pressure/temperature sensor based on CB/SR was derived by general effective media theory. The results show that the transfer functions coincided well with the experimental data, and the negative pressure coefficient of the resistance/positive temperature coefficient of resistance are shown. The working principles of these two kinds of sensors are different. The working principle of the pressure sensor based on CB/SR was related to the volume fraction of CB. With increasing volume fraction of CB, the working principle of this kind of pressure sensor varied from a piezo-resistive effect to a strain effect. In addition, the working principle of the temperature sensor based on CB/SR was that the resistivity changed with temperature; this was not related to the volume fraction of CB.

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Section: Resultsmentioning

confidence: 95%

Transfer function and working principle of a pressure/temperature sensor based on carbon black/silicone rubber composites

Liu

Huang

et al. 2015

J of Applied Polymer Sci

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“…Most of the devices demonstrated to date have planar geometry and tens to hundreds of tactels on a millimetre-spaced grid. The tactels are most often made of a soft material (such as carbon-loaded silicone rubber) [4,5] or microchannels filled with eGaIna metal alloy that remains liquid at room (and body) temperature [6]. The membranes are typically made of soft silicone rubber or polyimide films with the electrodes in the form of printed paths (e.g.…”

Section: Methodsmentioning

confidence: 99%

Pressure-sensitive Bio-compatible Skin Sleeve for Millimetre-Scale Flexible Instruments

Wasylczyk¹,

Ozimek²,

Tiwari³

et al. 2018

The Hamlyn Symposium on Medical Robotics

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“…Furthermore, Cheng et al [ 10 ] have fabricated 8 × 8 stretchable tactile sensing arrays, and the PDMS has been employed both for the fabrication of the skin structure and effective encapsulation. Mei et al [ 11 ] have designed a pressure-sensitive 4 × 4 array on the basis of the conductive rubber. Besides, the base material is silicone rubber, and the delay time is less than 2 s under an applied loading from 0 N to 4 N. Kazemzadeh et al [ 12 ] have also fabricated a graphene-based sensor array by using the laser scribing method, which refers to the highly sensitive sensor elements that are not integrated into any soft substrate.…”

Section: Introductionmentioning

confidence: 99%

A Stretchable Pressure-Sensitive Array Based on Polymer Matrix

Luo

Xiao

2017

Sensors

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Herein, a flexible 6 × 6 pressure-sensitive array (based on the PDMS (Polydimethylsiloxane) porous substrate) was designed. We have developed a facile method to fabricate the porous substrate, by a single-step operation using the sugar-template method. This strategy effectively diminishes the complexity of the preparation process, as well as the device structure. The electrical resistivity of the stretchable array demonstrates the negative piezo resistive coefficient (NPRC) under 0–100 kpa. Moreover, the pressure-sensitive array reveals a high sensitivity and low delay time (<0.5 s) to the applied forces. Therefore, the pressure distribution could be easily recognized by testing its conductivity changes. Besides, these signal data can be collected into the upper computer, with the purpose of tracking and analyzing the azimuth of the applied loading. This cost-effective micro array has a broad application prospect for fabricating the tactile sensor, artificial skin, and human-computer interfaces.

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A flexible pressure-sensitive array based on soft substrate

Cited by 26 publications

References 32 publications

Transfer function and working principle of a pressure/temperature sensor based on carbon black/silicone rubber composites

Transfer function and working principle of a pressure/temperature sensor based on carbon black/silicone rubber composites

Pressure-sensitive Bio-compatible Skin Sleeve for Millimetre-Scale Flexible Instruments

A Stretchable Pressure-Sensitive Array Based on Polymer Matrix

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