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Highly Sensitive Tactile Shear Sensor Using Spatially Digitized Contact Electrodes

Title
Highly Sensitive Tactile Shear Sensor Using Spatially Digitized Contact Electrodes
Author
이승백
Keywords
shear sensor; high sensitivity; friction detection; surface roughness detection
Issue Date
2019-03
Publisher
MDPI
Citation
SENSORS, v. 19, NO. 6 , no. 1300
Abstract
In this article, we report on a highly sensitive tactile shear sensor that was able to detect minute levels of shear and surface slip. The sensor consists of a suspended elastomer diaphragm with a top ridge structure, a graphene layer underneath, and a bottom substrate with multiple spatially digitized contact electrodes. When shear is applied to the top ridge structure, it creates torque and deflects the elastomer downwards. Then, the graphene electrode makes contact with the bottom spatially digitized electrodes completing a circuit producing output currents depending on the number of electrodes making contact. The tactile shear sensor was able to detect shear forces as small as 6 N, detect shear direction, and also distinguish surface friction and roughness differences of shearing objects. We also succeeded in detecting the contact slip motion of a single thread demonstrating possible applications in future robotic fingers and remote surgical tools.
URI
https://www.mdpi.com/1424-8220/19/6/1300http://repository.hanyang.ac.kr/handle/20.500.11754/109935
ISSN
1424-8220
DOI
10.3390/s19061300
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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