Flexible Hydrogel Capacitive Pressure Sensor for Underwater Applications

Proceedings

Michael Triantafyllou¹  Elgar Kanhere²  Jianmin Miao²  Meghali Bora³ 

[1] Department of Mechanical Engineering, Massachusetts Institute of Technology, Boston, MA 547609, USA;School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 999002, Singapore;Singapore-MIT Alliance for Research and Technology (SMART), Singapore 999002, Singapore;

关键词: capacitive;    hydrogel;    pressure sensor;    smart skin;   

DOI  :  10.3390/proceedings1040360

来源: DOAJ

【 摘 要 】

This paper reports development of a novel, flexible hydrogel based capacitive pressure sensor. It features a simple design of hydrogel thin film sandwiched between two gold electrodes. The sensor shows linear increase in output with increase in pressure. The microporous network of hydrogel enables high water retention while its flexible and stretchable structure ensures usage over large areas. These factors, combined with its stability in water, make it an ideal candidate for underwater applications. Further, the physical and chemical properties of hydrogels can be tailored to tune the capacitance to specific sensing needs. Flexible arrays of capacitive sensors with hydrogel hold great potential for underwater smart skin applications.

【 授权许可】

Unknown