A Soft Strain Sensor Based on Ionic and Metal Liquids

被引：277

作者：

Chossat, Jean-Baptiste ^{[1
]}

Park, Yong-Lae ^{[2
,3
]}

Wood, Robert J. ^{[2
,3
]}

Duchaine, Vincent ^{[1
]}

机构：

[1] Ecole Technol Super, Montreal, PQ H3C 1K3, Canada

[2] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[3] Harvard Univ, Wyss Inst Biol Inspired Engn, Cambridge, MA 02138 USA

来源：

IEEE SENSORS JOURNAL | 2013年 / 13卷 / 09期

关键词：

Wearable sensors; microfluidics; strain measurement; ionic solution; eutectic gallium indium (eGaIn); CARBON; ELECTRODE;

D O I：

10.1109/JSEN.2013.2263797

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel soft strain sensor capable of withstanding strains of up to 100% is described. The sensor is made of a hyperelastic silicone elastomer that contains embedded microchannels filled with conductive liquids. This is an effort of improving the previously reported soft sensors that uses a single liquid conductor. The proposed sensor employs a hybrid approach involving two liquid conductors: an ionic solution and an eutectic gallium-indium alloy. This hybrid method reduces the sensitivity to noise that may be caused by variations in electrical resistance of the wire interface and undesired stress applied to signal routing areas. The bridge between these two liquids is made conductive by doping the elastomer locally with nickel nanoparticles. The design, fabrication, and characterization of the sensor are presented.

引用

页码：3405 / 3414

页数：10

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