Pedometer-like Electricity Generator. Contact: [email protected] Zexi Xu , Abbas Semnani Advisor: Dimitrios Peroulis Team: HANDLE. Assume the magnetic flux density B at the coil is ： A ssume the coil is square shape with side length 33mm. The area of coil is:
Pedometer-like Electricity Generator
Contact: [email protected]
ZexiXu, Abbas Semnani Advisor: DimitriosPeroulis Team: HANDLE
Assume the magnetic flux density B at the coil is：
Assume the coil is square shape with side length 33mm. The area of coil is:
Assume the distance between the magnet and coil is 1mm, Bo=0.1T is the magnetic flux density away from 1mm of the surface of the magnet.
The magnetic flux density in the space is inversely proportional to square of the distance from the center of the magnet.
Weight of the hammer:
Assumption: when the hammer moves up, the magnitude of acceleration is g. The force from human is around 20N.
L1=10cm，L2=2cm, F-Mg=Ma=Mg, F=2Mg
In order to get the same amount of torque at one end.
Assumption: S1:S2=1:5; the human stepping frequency= 1Hz
This project aims to design small-sized energy harvesting device utilizing human walking kinetic energy. It involves four steps including, design the device, calculate the parameters, manufacture the device and test the output power.
When the hammer moves, the DC current goes through load and extra current charges the battery. When the hammer does not move, the battery can be the power supply for the load.
A. Kobayashi, Y. Dohmen. Effect of bright light emitting diode (LED) flashlights and white lines on orientation and mobility performance of persons with sever peripheral field loss—A simulation study. International Congress Series, 2005, 1282:627-630
G. Stetten, D. Shelton, W. Chang, R. Tamburo, V. Chib, A. Cois, R. Hollis, A. Rizzi, L. Lobes, D. Schwatzman. Po-topic IV-16: Progress towards a clinically useful sonic flashlight. Academic Radiology, 2003,10,(8) : 959