Flexible
sensors have great potential for monitoring human body motion signals. This
paper presents a flexible sensor that uses zinc oxide (ZnO) to improve the
mechanical properties and electrical conductivity of PVA hydrogel. The
composite hydrogel has excellent conductive properties and high strain
sensitivity, making it suitable for motion monitoring. The PVA/ZnO conductive
hydrogel is tested on various body parts, showing effective feedback on
movement changes and good electrical signal output effects for different motion
degrees, confirming its feasibility in flexible sensors. The sensor exhibits
good mechanical properties, electrical conductivity, and tensile strain sensing
performance, making it a promising sensor material. It can accurately monitor
wrist bending, finger deformation, bending, and large-scale joint movements due
to its wide monitoring range and recoverable strain. The results show that the
PVA/ZnO conductive hydrogel can provide effective feedback in flexible sensors,
which is suitable for use in motion monitoring.
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