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Simultaneous Detection of Displacement, Rotation Angle, and Contact Pressure Using Sandpaper Molded Elastomer Based Triple Electrode Sensor

Title
Simultaneous Detection of Displacement, Rotation Angle, and Contact Pressure Using Sandpaper Molded Elastomer Based Triple Electrode Sensor
Author
이승백
Keywords
motion sensor; displacement sensor; rotation angle sensor; pressure sensor; sandpaper molded PDMS
Issue Date
2017-09
Publisher
MDPI
Citation
SENSORS, v. 17, no. 9, Article no. 2040
Abstract
In this article, we report on a flexible sensor based on a sandpaper molded elastomer that simultaneously detects planar displacement, rotation angle, and vertical contact pressure. When displacement, rotation, and contact pressure are applied, the contact area between the translating top elastomer electrode and the stationary three bottom electrodes change characteristically depending on the movement, making it possible to distinguish between them. The sandpaper molded undulating surface of the elastomer reduces friction at the contact allowing the sensor not to affect the movement during measurement. The sensor showed a 0.25 mm(-1) displacement sensitivity with a +/- 33 mu m accuracy, a 0.027 degree (1) of rotation sensitivitywith similar to 0.95 degree accuracy, and a 4.96 kP (1) of pressure sensitivity. For possible application to joint movement detection, we demonstrated that our sensor effectively detected the up-and-down motion of a human forefinger and the bending and straightening motion of a human arm.
URI
http://repository.hanyang.ac.kr/handle/20.500.11754/111736https://www.mdpi.com/1424-8220/17/9/2040
ISSN
1424-8220
DOI
10.3390/s17092040
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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