BARTINGTON INSTRUMENTS
Page 8 of 32 OM2020/5
Note:
At any magnetometer resolution, resolution of Inclination I is dependent on the
magnitude of F alone, whereas resolution of Declination D is dependent on H and I and will
generally vary with latitude.
Example (where F = 47,000nT, I = 67°):
On x1 sensitivity (1nT):
RdI = circa 5 seconds
RdD = circa 10 seconds
On x10 sensitivity (0.1nT):
RdI = circa 0.5 seconds
RdD = circa 1.0 seconds
Note:
These are theoretical values and actual values will be determined by prevailing
conditions.
it can be seen that resolution in Declination is at a minimum
at the poles and at a maximum at the equator.