A Hinge Contact Friction Nanogenerator Based on Magnetic Drive
Based on the coupling principle of contact electrification and electrostatic induction,this paper innovatively designs and fabricates a magnetic driven hinge structure triboelectric nanogenerator(MDH-TENG),enabling the direct extraction of charges generated during the opening and closing of the hinge.Through in-depth theoretical analysis and finite element simulation,an experimental platform is established,leading to the following findings:the output voltage of the MDH-TENG is proportional to the electrode size and contact pressure,and inversely proportional to the electrode thickness.After rectifier circuit processing,the electrical energy output by the MDH-TENG can rapidly charge a capacitor,taking only 89 seconds to charge a 47 µF capacitor to 4.4 V.Following voltage attenuation processing,the output voltage of the MDH-TENG can be collected by a microcontroller.Combined with filtering algorithms and timer functions,this enables accurate wind speed measurement.This design opens new possibilities in the fields of energy harvesting and self-powered sensing,demonstrating significant potential in the era of smart sensing.
triboelectric nanogeneratorhinge structurebreeze energy harvestingwind speed sensor
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