Gravity Method Introduction
Introduction of Newton’s law
Gravitational potential field, gravitational acceleration
Measurement Principle
Point masses and anomalies of spatially extended point masses
Video 1 and 2: Theory of gravity measurements
In this video we introduce the resistivity method as an active survey type which probes the sub-surface in terms of its electrical resistivity. We derive a solution for the current flow density in a homogenous halfspace and then visualize the potential field for a two electrode setup. The need for a four electrode setup is explained.
Lecture slides Lecture Slides