Stretchable touch sensitive keypad

被引:11
作者
Cotton, D. P. J. [1 ]
Graz, I. M. [1 ]
Lacour, S. P. [1 ]
机构
[1] Univ Cambridge, Dept Engn, Nanosci Ctr, Cambridge CB2 1PZ, England
来源
PROCEEDINGS OF THE EUROSENSORS XXIII CONFERENCE | 2009年 / 1卷 / 01期
关键词
capacitive sensor; touch; stretchable; metallic conductors; silicone;
D O I
10.1016/j.proche.2009.07.038
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present a multifunctional and stretchable capacitive sensor capable of accurately detecting large strains, pressure and human touch. The device is prepared as a plate capacitor with stretchable thin gold film electrodes. Using conventional patterning techniques, a 3x3 array of stretchable sensors is prepared and implemented as a large-area 9-node touch pad. The array can operate when worn around the wrist or subjected to large deformations (>10% strain), measure pressure (up to 160kPa) and register touch applied with a finger, a metallic or plastic stylus.
引用
收藏
页码:152 / 155
页数:4
相关论文
共 5 条
[1]  
BAXTER LK, 1997, CAPACTIVE SENSORS DE
[2]   Studies on surface wettability of poly(dimethyl) siloxane (PDMS) and glass under oxygen-plasma treatment and correlation with bond strength [J].
Bhattacharya, S ;
Datta, A ;
Berg, JM ;
Gangopadhyay, S .
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2005, 14 (03) :590-597
[3]   Extended cyclic uniaxial loading of stretchable gold thin-films on elastomeric substrates [J].
Graz, Ingrid M. ;
Cotton, Darryl P. J. ;
Lacour, Stephanie P. .
APPLIED PHYSICS LETTERS, 2009, 94 (07)
[4]   Stretchable interconnects for elastic electronic surfaces [J].
Lacour, SP ;
Jones, J ;
Wagner, S ;
Li, T ;
Suo, ZG .
PROCEEDINGS OF THE IEEE, 2005, 93 (08) :1459-1467
[5]  
Zimmerman T.G., 1995, APPLYING ELECT FIELD, P280