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Benefits of Magnetic Gradiometers

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GEM Overhauser Walking Gradiometer
with GPS

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.

To learn more about applications of gradiometers, please feel free to download the complete paper. To download the 0.2 Mb file, click here.

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