Shanghai Inertia

Electromagnetic accelerator — Basic Science exhibit for science museums

Studio rendering

Category	Basic Science
Interaction	Electromechanical interactive
Standard size	Custom size
Supply	Single unit or batch · OEM to your drawing
Lead time	Standard 4–8 weeks after deposit (confirmed per contract)
Warranty	1 year, structure and control
Documents	Specification sheet · control diagram · spare-part list

A standard catalogue model: the dimensions, control package and finish are fixed, which is what keeps the price and the lead time predictable. Size, colour and interface language can be adapted without a new design cycle.

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01 / Overview

By observing the process of metal balls rotating faster and faster in a closed orbit, we can understand electromagnetic acceleration technology. The exhibit mainly consists of coils, small balls, and metal tracks. Pressing the start button, it can be observed that the metal ball rotates faster and faster in the closed track. This is because the alternating current introduced into the track coil generates a changing magnetic field, which induces current inside the metal ball. The magnetic field generated by the induced current interacts with the magnetic field of the acceleration coil, pushing the ball forward. The electromagnetic gun project that has received much attention in recent years is the application of electromagnetic acceleration technology. Target audience: Adolescents aged 6-15. Display format: Electromechanical interactive device operation instructions (audience experience) 1 Pressing the start button reveals that the metal ball rotates faster and faster in the closed track; 2. Understand electromagnetic acceleration technology. Description of the intrinsic connections between storylines and exhibits in the field of electromagnetics, including electromagnetic acceleration.

02 / How visitors use it

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.

03 / The science behind it

Due to the alternating current passing through the track coil, a changing magnetic field is generated, which induces current inside the metal ball. The magnetic field generated by the induced current interacts with the magnetic field of the acceleration coil, pushing the ball forward. The electromagnetic gun project that has received much attention in recent years is the application of electromagnetic acceleration technology. Reference materials.

04 / Built for a public floor

Every unit leaves the factory after a running test: mechanisms cycled, electronics burned in, edges dressed, fixings torqued and marked. Wear parts — bearings, sliders, lamps, belts, touch panels — are modular and listed on the spare-part sheet, so a venue technician can replace them without returning the exhibit. Crating is plywood with foam blocking; the loading plan and packing list travel with the shipment.