6 Frequently Asked Questions about Ground Penetration Radar (GPR)

by admin in Uncategorized

Groundpenetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. This nondestructive method uses electromagnetic radiation in the microwave band and detects the reflected signals from subsurface structures. And because this technology is relatively new, its first use was in the late 1950s, there may be some confusion about the nature, capabilities and limitations of ground penetrating radar. Here are some commonly asked questions about the technology that we hope clears up any confusion about GPR.

How does GPR work?

The way that Ground Penetrating Radar works is by sending electromagnetic energy (in the form of a radio wave) into the surface via a frequency of usually between 10 MHz and 3000 MHz. Some of this energy reflects off of an object (e.g., pipe, conduit) and is captured by a receiver antenna. Thus, GPR is especially useful in detecting metal objects like pipes or rebar because the radar energy will not penetrate metal.

How accurate is GPR?

This depends on several factors including soil type and moisture content, etc. However, under the right conditions and using the right equipment, GPR can be very accurate.

What are the benefits of concrete scanning?

Concrete scanning using GPR can keep your project on time, on budget and on par with safety rules. It can detail objects that can damage equipment and injure or even kill workers. 

Do I need GPR? 

If you are beginning a new construction project that will involve excavation of any kind, then you are definitely going to need GPR services like ours. Not doing so could impact safety performance, project schedules, and job site financials that could delay or cancel the entire project.

Is it difficult to use GPR equipment?

Yes. It can be difficult to use GPR equipment. That is why only workers who have had extensive equipment on operating and interpreting the results of such equipment should be used. This ensures that operators understand the basics of using GPR equipment and how to use it in real-life settings.

Is ground penetrating radar safe to use?

Ground penetrating radar (GPR) is a safe, non-destructive tool used in identifying subsurface objects. Moreover, GPR does not emit any harmful radiation or other byproducts.This means there will be no damage to the objects that it detects or operators who are using the equipment.

We hope this answers some questions you have about GPR. We are a non-destructive, non-invasive, subsurface imaging company that can produce detailed reports on the subsurface conditions surrounding your construction using our ground penetrating radar systems and our underground utility locator. If you have any questions about our services don’t hesitate to contact us.   

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