This 3-Axis Helmholz coil is capable of fully controlling the magnetic field in its centre. Produces about 5-10 times more magnetic field on each channel as the earth's magnetic field.

X channel (4 wraps): Winding Radius and distance between windings: 0.066675 m Max Continuous Current : 4.0 Amps Central field at 4 Amps : 215.8e-6 Tesla Typical Resistance: 2.5 Ohms

Y channel (4 wraps): Winding Radius and distance between windings: 0.060325 m Max Continuous Current : 4.0 Amps Central field at 4 Amps : 238.5e-6 Tesla Typical Resistance: 2.0 Ohms

Z channel (4 wraps): Winding Radius and distance between windings: 0.053975 m Max Continuous Current : 4.0 Amps Central field at 4 Amps : 265.5e-6 Tesla Typical Resistance: 1.6 Ohms

Maximum resistance is 4.0 Ohms on any channel.

Simple coil contacts using banana plugs such as J145-ND or J146-ND from www.digikey.com.

Easily driven using a standard lab power supply. (Example: KORAD KA3005P)

Access port to the central region: X -direction: 52 mm by 59 mm Y -direction: 52 mm by 65 mm Z -direction: 65 mm by 58 mm

4-40 screw holes on each access port for mounting customer positioning hardware or other additional apparatus as desired.

Coil Outer Dimensions: 14.85 x 14.85 x 14.85 cm

Coil Mass: 215 grams Package Mass: 460 grams Package Size: 8x8x8 inches (203x203x203 mm)