Dancing Magnetic Powder

By observing the movement of magnetic particles, understand the relevant characteristics of electromagnets and magnetic induction lines. The exhibit mainly consists of a stage body, iron chip box body, coil device, music module, microcontroller system, etc. The interactive desktop of this exhibit is divided into two parts. The upper part is an acrylic box with iron shavings evenly laid inside, and the lower part is a set of electrified coils distributed in flowers. visitors activates the device by pressing the button on the table, and the energized coil is powered on and off in a regular manner according to the melody of the music, generating a changing magnetic field that drives the movement of iron filings in the acrylic box. Viewers can watch iron filings move with the rhythm of music, combining into various shapes and experiencing the beauty of art brought by technology. Target audience: Adolescents aged 6-15. Display format: Electromechanical interactive device operation instructions (audience experience) 1 Press the button, select a type of music, and watch the fans jump with the music; 2. Change the music and observe the jumping of the iron powder.

Interaction type: Electromechanical interactive. The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Magnetic field refers to the field that transmits magnetic forces between physical objects. A magnetic field is composed of tiny particles in motion, which cannot be seen or touched under current conditions. Magnetic fields have the radiation characteristics of particles. There is a magnetic field around the magnet, and the interaction between the magnets is mediated by the magnetic field, so the two magnets can act without physical contact. Due to the fact that the magnetism of a magnet originates from electric current, which is the movement of charges, in general, a magnetic field is the strength and velocity of the electric field relative to the movement of charges at the observation point, resulting in changes in the force acting on the charges at the observation point. Changing the current intensity to alter the magnetic field around the magnetic powder changes the motion state of the magnetic powder. Reference materials.