Gradiometers
have shown that they can offer a high degree of immunity from
diurnal and minor magnetic storm activity in the ambient magnetic
field; they can enhance near-surface, small or weakly magnetic
anomalies; and they can provide obvious improvements in spatial
resolution over total field measurements.
A gradiometer
is ideal for locating small, near surface anomalies, and is
therefore very useful in archeological, geotechnical and environmental
mapping. A further advantage is that a vertical gradiometer
may be deployed without a base station magnetometer, as this
component of the magnetic field is normally free of diurnal
variations.
One of the
sensors used for the gradient measurement can also be used to
obtain total field data - providing a complete set of data for
analysis and interpretation.
Overhauser
Walking Gradiometer
with <1m Resolution GPS
To
learn more about applications of gradiometers, please feel free
to download the complete paper. To download the 0.2 Mb file,
click here.
