Скачать или смотреть Electromagnetic catapult, electromagnetic catapult collection 43

The video demonstrates a homemade electromagnetic launcher. The working principle of this launcher is primarily based on the following points:

Magnetic Interaction: Magnets are placed on both sides of the launcher, and electromagnets are arranged on the middle guide rail. By controlling the direction of the current in the electromagnets, they produce attractive or repulsive forces with the magnets on both sides, thereby propelling the projectile to accelerate.
Continuous Acceleration: The current direction of the electromagnets is constantly changing to ensure that the projectile is always subject to a forward thrust. This continuously changing magnetic field allows the projectile to accelerate continuously.
Sliding Contact: The projectile and the guide rail achieve current transmission through sliding contact. The video tried several sliding contact methods, such as copper tape, brushes, and spring sheets, and finally chose spring sheets as the best option.
Energy Conversion: Electrical energy is converted into magnetic field energy through electromagnets, and then converted into the kinetic energy of the projectile through the interaction between the magnetic field and the conductor.