|
|
|
| Overview |
| Topical |
| Popular Science |
| Research |
| Observatory |
| Data |
| SEARCH |
| |
| IRF Kiruna |
| IRF Umeå |
| IRF Uppsala |
| IRF Lund |
|
MAP 
|
|
|
|
Block schematic diagram of a simple second-harmonic fluxgate magnetometer. The information relating to field intensity and direction is carried in the second harmonic of the excitation. PSD-phase sensitivity detector; LPF-low-pass filter.