Journal
SMART MATERIALS AND STRUCTURES
Volume 28, Issue 10, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-665X/ab3af6
Keywords
flexible pressure sensor; printed sensor; customizable pressure sensor; medical diagnostic; health monitor
Funding
- National Natural Science Foundation of China [50972024, 61223002]
- National Key Research and Development Program of China [2017YFB0406400]
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Flexible pressure sensors with high sensitivity, broad pressure range and a large an ay are highly desired for wearable applications. In this work, a flexible pressure sensor with a polyvinyl chloride/carbon black microgrid films was obtained by screen printing. Compared to other recent pressure sensors, these printed pressure sensors with microstructured grids have a broad pressure range up to 666.7 kPa, an excellent sensitivity of typically 4.71 kPa(-1) in the dynamic range between 0 and 15 kPa, a fast response of typically 25 ms, a high stability, a good durability in a broad pressure range for more than 5300 cycles and long effectiveness. We showed that the printed pressure sensors can be customized to fit in a smart insole. Moreover, a wrist pulse could be detected accurately by a single sensor. The proposed printed pressure sensors will have a great potential a smart devices in health monitoring, for preventive health care, and in rehabilitation care.
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