Gradiometro
Sign in to savethumb|Scientist making a magnetic survey (archaeology)|magnetic survey with an axial gradiometer. A gradiometer measures the gradient (numerical rate of change) of a physical quantity, such as a magnetic field or gravity.
thumb|Scientist making a magnetic survey (archaeology)|magnetic survey with an axial gradiometer. A gradiometer measures the gradient (numerical rate of change) of a physical quantity, such as a magnetic field or gravity.