Strain-Insensitive Soft Pressure Sensor for Health Monitoring Application Using 3D-Printed Microchannel Mold and Liquid Metal

In this research, we introduce a strain-insensitive soft pressure sensor using 3D-printed microchannel mold and liquid metal for health monitoring applications. Our soft pressure sensor consists of elastomer and liquid metal for its intrinsic stretchable property. Also, serpentine geometric pattern...

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Bibliographic Details
Published in2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII) pp. 2535 - 2538
Main Authors Kim, Kyuyoung, Choi, Jungrak, Jeong, Yongrok, Kim, Minseong, Cho, Incheol, Kim, Seunghwan, Oh, Yongsuk, Park, Inkyu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2019
Subjects
3D printing
health monitoring
liquid metal
Liquids
Metals
Microchannels
Monitoring
Pressure sensors
Robot sensing systems
Soft pressure sensor
Strain
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Summary:In this research, we introduce a strain-insensitive soft pressure sensor using 3D-printed microchannel mold and liquid metal for health monitoring applications. Our soft pressure sensor consists of elastomer and liquid metal for its intrinsic stretchable property. Also, serpentine geometric pattern of the microchannel enabled the sensor to be strain-insensitive for stable signal response and recovery in wearable applications. Various experiments for sensor characterizations were conducted and the study of FEM simulation verified the strain-insensitive behavior of serpentine pattern. As a health monitoring application, body pressure distribution was monitored using several pressure sensors attached on the clothes and the body pressures were compared according to various lying conditions.
ISSN:2167-0021
DOI:10.1109/TRANSDUCERS.2019.8808472