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Remote tactile sensing system integrated with magnetic synapse

Title
Remote tactile sensing system integrated with magnetic synapse
Authors
Oh, Sun JongJung, Young DoKim, Seong GiKim, Sung JoonHu, XinghaoLim, Hyun EuiKim, Cheol Gi
DGIST Authors
Kim, Cheol Gi
Issue Date
2017-12
Citation
Scientific Reports, 7(1)
Type
Article
Article Type
Article
Keywords
PRESSURE SENSORSELECTRONIC SKINRUBBERDEVICESSTRAINNANOGENERATORSILICONFINGER
ISSN
2045-2322
Abstract
Mechanoreceptors in a fingertip convert external tactile stimulations into electrical signals, which are transmitted by the nervous system through synaptic transmitters and then perceived by the brain with high accuracy and reliability. Inspired by the human synapse system, this paper reports a robust tactile sensing system consisting of a remote touch tip and a magnetic synapse. External pressure on the remote touch tip is transferred in the form of air pressure to the magnetic synapse, where its variation is converted into electrical signals. The developed system has high sensitivity and a wide dynamic range. The remote sensing system demonstrated tactile capabilities over wide pressure range with a minimum detectable pressure of 6 Pa. In addition, it could measure tactile stimulation up to 1,000 Hz without distortion and hysteresis, owing to the separation of the touching and sensing parts. The excellent performance of the system in terms of surface texture discrimination, heartbeat measurement from the human wrist, and satisfactory detection quality in water indicates that it has considerable potential for various mechanosensory applications in different environments. © 2017 The Author(s).
URI
http://hdl.handle.net/20.500.11750/5624
DOI
10.1038/s41598-017-17277-2
Publisher
NATURE PUBLISHING GROUP
Related Researcher
  • Author Kim, CheolGi Lab for NanoBio-MatErials & SpinTronics(nBEST)
  • Research Interests Magnetic Materials and Spintronics; Converging Technology of Nanomaterials and Biomaterials; Bio-NEMS;MEMS
Files:
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Collection:
Department of Emerging Materials ScienceLab for NanoBio-Materials & SpinTronics(nBEST)1. Journal Articles


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