Advanced Geosciences, Inc. (55020)
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Link Building – Blog Post
06-27-13
Andrea Young
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Resistivity Method
What You Need to Know About the Resistivity Method
http://www.agiusa.com/
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Soil resistivity can be measured using the resistivity method. There are naturally some limitations to
using this method, which can affect the accuracy of your readings. Fortunately, the more you know and
the better the technology you are using, the better chance you have of minimizing any errors in your
research.
This commonly used method is designed to measure the resistivity of soils and rock. Since the
foundation of this trusted geophysical method in the 1920s, there have been huge improvements in the
accuracy of the imaging systems available today.
Find the Proper Equipment
It is important to have the proper equipment you need to take on large-scale resistivity imaging
projects. If your computer cannot keep up with your needs, it may be time to upgrade to new imaging
systems.
There are a variety of single channel and multi-channel resistivity imaging systems to choose from. The
right equipment for you will depend on your project needs, research goals, and budget.
2D and 3D Image Software
Technologies have advanced in recent years so the software and equipment is now easier to use and can
take accurate readings quickly. Many geophysical resistivity and IP imaging system manufacturers offer
both the systems and software you need to ensure your success. This software will present the
information in 2D or 3D images for more accurate, easily understandable data.
Limitations in the Readings
Without the proper equipment and knowledge in place, your research may be completely worthless. If
you cannot rely on the accuracy of the research, then you cannot rely on the results.
Soil resistivity can vary based on the moisture content, salt content, underground pieces of metal,
temperature, and more. This is why it is advised to account for seasonal variations when you are
analyzing and conducting research. By accurately testing the soil resistivity, you can in turn determine
the soil’s corrosiveness.
Get the Information You Need
Once you have gathered the data, you need to know what to do with it. Typically, the widely accepted
Wenner method is used to calculate soil resistivity. Even if you determine that there are poor soil
conditions, it doesn’t mean that you cannot still install a more elaborate grounding system.
There are seminars, classes, and other sources of information that can help you to better understand
how to take full advantage of electrical resistivity imaging. Call and speak with a qualified resistivity
imaging expert about any further questions you may have about the resistivity method.