A Triple-Mode Flexible E-Skin Sensor Interface for Multi-Purpose Wearable Applications

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...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2017-12, Vol.18 (1), p.78
Main Authors: Kim, Sung-Woo, Lee, Youngoh, Park, Jonghwa, Kim, Seungmok, Chae, Heeyoung, Ko, Hyunhyub, Kim, Jae Joon
Format: Article
Language:English
Subjects:
Breathing
Composite materials
electronic skin
Integrated circuits
Knee
Mastication
multi-purpose
Piezoresistivity
Polyvinylidene fluorides
readout integrated circuit
sensor interface
Sensors
Smartphones
Swallowing
triple-mode
wearable device
Wearable technology
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Summary: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.
ISSN:1424-8220
1424-8220
DOI:10.3390/s18010078