Multi-Functional Soft Strain Sensors for Wearable Physiological Monitoring

Wearable devices which monitor physiological measurements are of significant research interest for a wide number of applications including medicine, entertainment, and wellness monitoring. However, many wearable sensing systems are highly rigid and thus restrict the movement of the wearer, and are n...

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Main Authors: Josie Hughes, Fumiya Iida
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/18/11/3822
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author Josie Hughes
Fumiya Iida
author_facet Josie Hughes
Fumiya Iida
author_sort Josie Hughes
collection DOAJ
description Wearable devices which monitor physiological measurements are of significant research interest for a wide number of applications including medicine, entertainment, and wellness monitoring. However, many wearable sensing systems are highly rigid and thus restrict the movement of the wearer, and are not modular or customizable for a specific application. Typically, one sensor is designed to model one physiological indicator which is not a scalable approach. This work aims to address these limitations, by developing soft sensors and including conductive particles into a silicone matrix which allows sheets of soft strain sensors to be developed rapidly using a rapid manufacturing process. By varying the morphology of the sensor sheets and electrode placement the response can be varied. To demonstrate the versatility and range of sensitivity of this base sensing material, two wearable sensors have been developed which show the detection of different physiological parameters. These include a pressure-sensitive insole sensor which can detect ground reaction forces and a strain sensor which can be worn over clothes to allow the measurements of heart rate, breathing rate, and gait.
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spelling doaj.art-3aeedd5bf96e4350805515912ad8c4a02022-12-22T04:01:25ZengMDPI AGSensors1424-82202018-11-011811382210.3390/s18113822s18113822Multi-Functional Soft Strain Sensors for Wearable Physiological MonitoringJosie Hughes0Fumiya Iida1Bio-Inspired Robotics Lab, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UKBio-Inspired Robotics Lab, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UKWearable devices which monitor physiological measurements are of significant research interest for a wide number of applications including medicine, entertainment, and wellness monitoring. However, many wearable sensing systems are highly rigid and thus restrict the movement of the wearer, and are not modular or customizable for a specific application. Typically, one sensor is designed to model one physiological indicator which is not a scalable approach. This work aims to address these limitations, by developing soft sensors and including conductive particles into a silicone matrix which allows sheets of soft strain sensors to be developed rapidly using a rapid manufacturing process. By varying the morphology of the sensor sheets and electrode placement the response can be varied. To demonstrate the versatility and range of sensitivity of this base sensing material, two wearable sensors have been developed which show the detection of different physiological parameters. These include a pressure-sensitive insole sensor which can detect ground reaction forces and a strain sensor which can be worn over clothes to allow the measurements of heart rate, breathing rate, and gait.https://www.mdpi.com/1424-8220/18/11/3822soft sensorswearable sensorsgait detection
spellingShingle Josie Hughes
Fumiya Iida
Multi-Functional Soft Strain Sensors for Wearable Physiological Monitoring
Sensors
soft sensors
wearable sensors
gait detection
title Multi-Functional Soft Strain Sensors for Wearable Physiological Monitoring
title_full Multi-Functional Soft Strain Sensors for Wearable Physiological Monitoring
title_fullStr Multi-Functional Soft Strain Sensors for Wearable Physiological Monitoring
title_full_unstemmed Multi-Functional Soft Strain Sensors for Wearable Physiological Monitoring
title_short Multi-Functional Soft Strain Sensors for Wearable Physiological Monitoring
title_sort multi functional soft strain sensors for wearable physiological monitoring
topic soft sensors
wearable sensors
gait detection
url https://www.mdpi.com/1424-8220/18/11/3822
work_keys_str_mv AT josiehughes multifunctionalsoftstrainsensorsforwearablephysiologicalmonitoring
AT fumiyaiida multifunctionalsoftstrainsensorsforwearablephysiologicalmonitoring