Loading…
Eddy Current Simulator
Three-step authentication: Dimensions → Weight → Eddy Current. Select a coin and run the full test, or enter readings from your device.
±5% applies only against a measured genuine coin of the same type on the same unit. With no reference coin, compare against the formula with the physics-only band of ±21%. For the multi-factor score and certificates, an eddy-current pass needs a reference coin reading; a formula-only reading is recorded as inconclusive.
1
Dimensions
±0.15mm / ±0.10mmDiameter: —
Thickness: —
2
Precision Scale
±0.05gMass: —
3
Eddy Current Pendulum
±21% of 56.8°Eddy Current: —
Coin Specifications & EDC Model↓
Mass: 33.93 g
Density: 17.5 g/cm³
\u03C3: 9.7 MS/m
Volume: 1.9389 cm³
Diameter: 32.77 mm
Thickness: 2.84 mm
Purity: 91.67% Gold, 8.33% Copper
Troy Oz: 1.0909
Davg = 488 × 2.90S / (σ0.998 × V1.431)
An empirical fit to 38 readings on Coin Cradle #0001: the constants and the exponent 1.431 are fitted, not derived. The physics behind it: eddy-current braking ∝ σ·t × field geometry, with the coin gap = 3S − t mm (spacers are 3 mm gauge blocks). See the physics replica.
Expected
56.83°
±21%: 44.9° – 68.8°
›Real device dial reference
