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- Title
A Triple-Mode Flexible E-Skin Sensor Interface for Multi-Purpose Wearable Applications.
- Authors
Kim, Sung-Woo; Lee, Youngoh; Park, Jonghwa; Kim, Seungmok; Chae, Heeyoung; Ko, Hyunhyub; Kim, Jae Joon
- Abstract
This study presents a flexible wireless electronic skin (e-skin) sensor system that includes a multi-functional sensor device, a triple-mode reconfigurable readout integrated circuit (ROIC), and a mobile monitoring interface. The e-skin device's multi-functionality is achieved by an interlocked micro-dome array structure that uses a polyvinylidene fluoride and reduced graphene oxide (PVDF/RGO) composite material that is inspired by the structure and functions of the human fingertip. For multi-functional implementation, the proposed triple-mode ROIC is reconfigured to support piezoelectric, piezoresistance, and pyroelectric interfaces through single-type e-skin sensor devices. A flexible system prototype was developed and experimentally verified to provide various wireless wearable sensing functions--including pulse wave, voice, chewing/swallowing, breathing, knee movements, and temperature--while their real-time sensed data are displayed on a smartphone.
- Subjects
WEARABLE technology; PYROELECTRICITY; INTEGRATED circuits; GRAPHENE oxide; WIRELESS sensor networks; POLYVINYLIDENE fluoride
- Publication
Sensors (14248220), 2018, Vol 18, Issue 1, p78
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s18010078