Helmholtz Coils create an extremely uniform low frequency magnetic field between and in the centre of the coils. The strength of the magnetic field generated is directly proportional to the number of turns in the coils and the current applied to them.
The coils are wound in series so that the magnetic field produced by current flowing in one coil aids the field in the other coil. The windings on most standard ETS-Lindgren Helmholtz coils are made of AWG-10 wire providing a maximum current greater than 20 A. On custom Helmholtz coils, wire gauge determines the maximum current.
|Amperes/ Meter/ Ampere||84.3|
|Number of Turns||36 per coil|
|Total Inductance (H)||3.3 mH|
|Total Resistance ( )||0.5 ?|
|TypeMaximum Continuous Field||Monaxial Helmholtz Coil21.2 Gauss|