Human power generation

Human Power Generation, Pedal Power Generation, Bicycle Power Generation, Treadmill Power Generation - Customized Science Museum Exhibitions, Campus Community Science Popularization Equipment, Source Manufacturer of Science Exhibitions Description and Scientific Principle Introduction:

The exhibition items consist of treadmills, bicycles, and treadmills, showcasing knowledge related to the piezoelectric effect and electromagnetic induction principles. When you engage in activities such as stepping, cycling, and running in the exhibition items, the LED lighting column in front of you will light up. The faster you exercise, the greater the power generation and the higher the brightness of the lighting column. A piezoelectric ceramic device capable of generating electricity is installed under the pedal of the stepper. Piezoelectric ceramics are information functional ceramic materials that can convert mechanical and electrical energy into each other, utilizing the piezoelectric effect. Piezoelectric ceramics are composed of irregularly embedded small grains, each of which is microscopically arranged into a lattice with atoms or ions arranged in a regular pattern, and can be seen as a small single crystal. The unit cell structure of piezoelectric ceramics changes with temperature. This polarization is not generated by an external electric field, but by the crystal itself, so it is called spontaneous polarization. Ceramic tiles are compressed, resulting in a decrease in polarization strength and the release of some adsorbed free charges, leading to discharge phenomena. Bicycles and treadmills are connected to DC generators. A DC generator is a device that converts mechanical energy into DC electrical energy, utilizing the principle of electromagnetic induction. The coil contacts the electric brush through two semi-circular slip rings, and then forms a closed circuit through wires and light bulbs; The coil rotates, cutting the magnetic field lines, so that the circuit generates induced electromotive force, and the lighting column lights up. The faster a person moves, the faster the coil rotates, and the more times the conductive coil cuts magnetic lines per unit time, the more electrical energy is generated, and the brighter the lighting column. The application of piezoelectric effect and electromagnetic induction principle is very extensive. Transducers, piezoelectric actuators, and piezoelectric sensors all utilize piezoelectric effect, while AC generators, induction motors, and transformers all utilize electromagnetic induction principle.

Main technical parameters of exhibits:

2.2*1.5*1.6

Principle explanation and demonstration video: