期刊
SMART MATERIALS AND STRUCTURES
卷 29, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-665X/ab540b
关键词
stretchable sensor; strain sensor; robotic feedback sensor; human motion detection; sinusoidal channel; viscoelastic ionic liquid; finite element modeling
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [NRF-2019R1A2B3001830]
A highly stretchable, stable and linear fluidic strain sensor has been developed using cost-effective and simple fabrication process. A biocompatible composite of glycerol and potassium chloride has been used as the conductive sensing material which is infilled in 5-half cycles sinusoidal channel made of elastomer using 3D printed mold. High sensitivity with hysteresis of 4.23% and speed of 5 Hz were achieved due to less viscous composite and optimized sensor design. The fabricated sensor exhibited outstanding resistive response up to 100% stretching and gauge factor of 2.7. Device was tested on 8000 cycles at 25% strain. The optimization of the design was performed on COMSOL 5.4 using FEA tool. Sensor's characterization in different environmental conditions was successfully performed. Finally device was used as a feedback sensor for underwater robotic angular movement detections and personnel wearable device. The results highly favor our proposed sensor to be used in high end applications.
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