Description

1. AC-DC Helmholtz coil

AC-DC Helmholtz coil with PMMA former has a light overall weight without metal parts and it can be used for AC and DC, especially suitable for generating AC magnetic fields. The disadvantage is its poor heat- resistance, and it is easily broken by strong impact.

 

Specifications

· Model No.: HLY10-50, mounted upright, horizontal field

· PMMA former, varnished wire with copper TU1

 

2. DC Helmholtz Coil

DC Helmholtz Coil with Al frame former has a good stability and excellent heat dissipation, and its disadvantage is that it is not suitable for generating AC magnetic fields.

 

Specifications

· Model No.: HLY10-50, mounted upright, horizontal field

· Al frame former, varnished wire with copper TU1

 

Electric Parameters

· DC resistance at 20℃: About 1.3 Ω

· Insulation resistance: Better than 5 MΩ

 

Cooling Methods

· Naturally Cooling

 

Dimensions

· Nominal Diameter: 200 mm, Intercoil gap: 60 mm;

 

Field Parameters

· Central field strength: Better than 50 Gs at 5 A

· Homogeneity: Better than 0.1 % at the center homogeneity volume of S φ 28 mm (a geometry shape of sphere)

  Homogeneity: Better than 1 % at the center homogeneity volume of S φ 50 mm (a geometry shape of sphere)

 

Operating Period:

Operating continuously 0.5 hour for 50 Gs, the surface temperature of coils will increase less than 30℃