Principal operating mechanism
The platform represents a feedback-stabilized magnetic suspension experiment. A fictional current-conditioning skid supplies annular field coils around a test platen; optical distance sensors represent payload-position measurements. In an actual apparatus the combination of controlled electromagnetic forces, sensing and active feedback can maintain a contactless configuration in a limited operating region. Here the animated sphere motion is illustrative, not the output of a validated force or control-system solver.
Live textbook equations
Magnetic field energy density (vacuum approximation)u = B² / (2μ₀)B is the illustrative flux density in tesla; μ₀ = 4π × 10⁻⁷ H/m is the textbook reference approximation used for this educational calculation. The readout is in kJ/m³ and does not predict lift force, coil geometry, magnetic saturation or actual local field.
Ideal inductive energyU = ½ L I²L is illustrative inductance in henries and I is illustrative current in amperes. The readout shows joules in an ideal lumped coil without resistive, magnetic-material or nonlinear effects.
Near-Earth gravitational potentialE = m g hThe payload's illustrative mass is fixed at 1.80 kg, g = 9.80665 m/s² is a conventional textbook value, and h is the selected height in metres above an arbitrary reference plane. It is not a statement about the actual load-bearing capability of the coils.
Independent arithmetic verification
Coil energy from ½LI² (engine)15.7500 J
Energy from ½ΨI with Ψ = LI (independent path)15.7500 J
Absolute difference0.0000 J
Illustrative flux linkage Ψ = LI1.050 Wb-turn
Scientific status and limitations
Genuine science: ideal inductive energy, magnetic energy density in vacuum, gravitational potential energy and the need for position feedback in controlled levitation. Engineering-inspired reconstruction: multi-ring coil packs, a flux-return base, power electronics, cryogenic-service-style stanchions, sensor mounts, optical tracking and maintenance platforms. Scaled: every dimension and architectural separation. Simplified educational representation: the independent B, L and I controls, a fixed illustrative payload mass and idealised readout equations. Speculative or illustrative: flux curves, stage movement, feedback response and instrument illumination.
Coil fields, suspension forces, feedback stability, thermal loads and cryogenic conditions have not been independently solved or validated. No engineering ratings, actual facility specifications, safety clearances or performance guarantees are represented.
Illustrative design, not affiliated with any real institution or manufacturer.