New Pressure Matrix Array Sensor Composed of Flexible Mechanical Sensor Elements
Yufeng Wu, Junchen Liu, Sen Lin, Kun Huang, Enfu Chen, Kai Huang and Ming Lei
1State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing, 100876, China
2School of Physical Science and Technology, Guangxi University, Nanning, 530004, China
# These authors contributed to this work equally.
Abstract
Due to the development of science and technology, people are increasingly interested in portable and flexible devices, and demand is deepening. Among them, sensors play an important role in the signal transmission between people and equipment. We study a low-cost, easy to prepare and can be mass-produced flexible pressure sensor element, which is made of silver nanowires /polyvinyl butyral /melamine sponge (AgPMS). Due to the chemical stability of the silver nanowires and its wrapped structure on melamine sponge skeleton, AgPMS can maintain constant resistance in 5 000 times compression and at high temperature for 15 days, indicating high mechanical stability and high oxidation resistance. With the 60% compression, AgPMS shows 60% high resistance change rate. In order to apply it to actual sensing, we assembled the AgPMS into a 5×5 sensor matrix array (SMA). It shows sharp difference of resistance change rate while under compression of 30% and 60%. We compare the force distribution exhibited of several different shapes of pressure, respectively. It indicates that each array element has a high responsiveness to the resistance changes. And the sensitivity can be adjusted freely with the array size of the sensor.
Publication details
Received: 09 Jun 2021
Revised: 18 Jul 2021
Accepted: 05 Aug 2021
Published online: 15 Jan 2022
Article type:
Research Paper
DOI:
10.30919/es8d626
Volume:
18
Page:
105-112
Citation:
Engineered Science, 2022, 18, 105-112
Permissions:
Copyright
Number of downloads:
3133
Citation Information:
22
Description:
A kind of flexible sensor elements AgPMS was fabricated, and assembled into a pressure sensor. ....
A kind of flexible sensor elements AgPMS was fabricated, and assembled into a pressure sensor.
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