HELM-3-2
2.2 Meter Triaxial Helmholtz Coil System suitable for magnetometer calibration and testing as well as general laboratory or field magnetic measurement work.
| Specifications | |
| Axial Alignment | Orthogonality better than ± 0.1 degrees |
| Magnetic Constant | 75,000 nT/AMP Nominal |
| Calibration Accuracy | ± 0.01% at Coil Center |
| Field Uniformity | < 0.025% Gradient in a centrally located 20 cm sphere < 0.005% Gradient in a centrally located 10 cm sphere |
| Geometry | (3) Nested Rectangular Coil Pairs |
| Dimensions | Largest Dimension of Coil is 215 cm2 |
| Weight | 114 kg |
| Construction | All non-magnetic materials; coils are electrically isolated to prevent eddy current loops. |