What Is Fluxgate Gradiometer?

Standard fluxgate gradiometers measure the vertical gradient of the local magnetic field which can be influenced by shallow magnetic sub-surface archaeological features. ... In this case the magnetic gradient is derived from the field data and then interpreted to produce maps showing possible sub-surface archaeology.

What is a gradiometer survey?

The gradiometer is a magnetometer which measures the change in the magnetic field (the gradient of the field). Compared to a magnetometer this increases the measurement accuracy and the sensitivity to regional changes of the Earth's magnetic field. Both measuring systems can also be used on the water.

What is a magnetometer used for?

4 Magnetometer. A magnetometer is a scientific instrument used to measure the strength and direction of the magnetic field in the vicinity of the instrument.