HelmholtzSim

Helmholtz Simulator

Interactive Helmholtz Coil Simulator

Coil Configuration Constants

Fixed physical constants for this simulation.

Permeability of Free Space (μ₀):

1.26e-6 T·m/A

Helmholtz Geometric Factor (at z=0):

0.7155

Copper Resistivity (ρ):

1.68e-8 Ω·m

Max Current Density (Jₘₐₓ):

3.0 A/mm²

Interactive Parameters

Adjust sliders to explore the relationships. The magnetic field (B) is at the midpoint between coils.

Coil Radius (R)0.100 m

Number of Turns (N)100 turns

Current (I)1.00 A

Magnetic Field (B at z=0)0 µT

Derived Electrical & Thermal Properties

Calculated properties based on current configuration.

Req. Wire Cross-Section:

0.333 mm²

Req. Wire Diameter:

0.651 mm

Total Wire Length:

125.66 m

Total Wire Resistance:

6.33 Ω

Total Power Dissipation:

6.33 W

Coil Winding Cross-section

Define the coil former's winding channel and see how the wires pack.

Channel Width10.0 mm

Channel Height10.0 mm

Calculated Wire Diameter:

0.651 mm

Wires per Row (Ideal):

Number of Rows (Ideal):

Actual Winding Width:

9.77 mm

Actual Winding Height:

4.56 mm

Channel Area:

100.0 mm²

Total Copper Area:

33.33 mm²

Fill Factor:

33.3 %

Packing Status:

Winding fits in channel.

Magnetic Field Profile Along Axis

Shows the magnetic field strength (B) along the central axis (z) of the Helmholtz coils. The center of the system is at z/R = 0. Coils are at z/R = ±0.5.