Schlumberger(2) This array is applicable for fixed cross section scan measurement; electrode arrangement and movement are as follows. Characteristics: The measured pseudo-section is an inverted trapezoid (above). Description: First, AM=MN=N...[more]
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. Characteristics: The measured pseudo-section is a para...[more]
Wenner Alpha () This array is applicable for fixed cross section scan measurement; electrode arrangement and movement are as follows. Characteristics : the measured pseudo-section above is an inverted trapezoid. Description : First, electro...[more]
What is Transient EM(TEM)? The principle of Transient E.M.(TEM) method of geophysical prospecting is very simply, that current flowing in a a transmitter loop sets up a magnetic field which when switched off induces eddy currents to flow in...[more]
DC Resistivity Electrical Resistivity Tomography (ERT) Geoelectric model from a dipole-dipole resistivity survey for water resource study: lower resistivities between 90 and 100 meters indicate increased water content due to higher fracture...[more]
Electrical probing depth Exploration depth depends on the maximum length measurement arrangement, rather than depending on the length of the survey line. Scroll measure does not increase the depth of exploration. In the number of ele...[more]
Electrode distance and resolution Electrode spacing should be 2 to 4 times the minimum diameter of the study Resolution of about half the distance of the electrodes The higher electrode distance is smaller, high density electrica...[more]
The step as following: Down load data files (*.wda) to your computer, either laptop or desktop; 2.Run WDAFC.exe (which will be provided in the CD delivered with instrument), Click open WDA data file to convert button and in the prompted dia...[more]
The greatest limitation of the resistivity sounding method is that it does not take into account horizontal changes in the subsurface resistivity. A more accurate model of the subsurface is a two-dimensional (2-D) model where the resistivit...[more]
...[more]
ENGLISH
Chinese
Russian
