What is Dipole-dipole array in geo-electrical imaging method?
Dipole-Dipole Roll Along (Dipole-dipole)
This array is applicable for extendable cross section continuous roll-along scan measurement; electrode arrangement and movement are as follows.
The measured pseudo-section is a parallelogram.
First, electrodes A, B keep unmoved, system moves electrodes M and N rightwards point by point, and thus we get the first roll-along line; then electrodes A, B and moves electrode M, N rightwards by one electrode spacing at the same time, electrodes A, B keep unmoved whilst system moves electrodes M, N rightwards point by point, and thus we get the second roll-along line; continue scan measuring like this, and finally we gain a pseudo-section in parallelogram