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Ground penetrating radar: what are the benefits for your business?

Ground penetrating radar (GPR) transmits electromagnetic energy into concrete, soil and other materials to produce subsurface imagery. These images are then used to detect anomalies, objects and voids, as the frequencies sent out from the GPR penetrate the ground and are scattered, reflected or refracted when they come across an alteration in material, showing the type of anomaly or objects located in the earth’s subsurface.

The reflection’s strength depends on the difference in conductivities between the objects the radar passes through, and how this impulse reacts is dependent on the anomaly or object’s size and density. The GPR unit’s receiver notices the altered signal, when it will then be recorded alongside the two-travel time needed to detect the object. The amplitude, subsurface materials relative permittivity and travel time are then combined to produce a scan depth scale that provides all necessary information for what is being recorded.

Ground penetrating services utilise specialised software to translate raw data in real time, with experts analysing and interpreting these images to determine what anomalies or objects are lying beneath the ground.

There are many benefits to using this cutting-edge technology, and they include:


One of the ultimate advantages of GPR is its ease-of-use. Just one piece of equipment has the ability to take a detailed image of a large area. To commence imagery, the technician must pass the technology over the range, with an onboard transmitter sending an electromagnetic energy pulse into the earth. If the pulse comes across an anomaly or objects, the signal will then be scattered, reflected and refracted, depending on the anomaly’s size and density.

Utilising a group of consecutive scans, the GPR technician can record imperative information from the specific range. Cutting-edge technology will then transmit this information into digital imagery, with the imagery providing a sophisticated map of the subsurface anomalies, objects and voids. As the final imagery looks like colourful bands or black and white static, a trained technician must interpret the information, something that can easily be done in the moment of operation.

They have powerful detection capabilities

GPR can easily seek and identify anomalies and objects in the subsurface. This includes voids across concrete, rock and soil. It can easily locate both nonmetal and metal objects, and can also detect composition variations.

It can detect the following materials with considerable ease:

  • Metal

  • Concrete

  • Clay

  • pVC

  • Plastic

  • Wood

  • Water

GPR can also tell the technician about recent alterations in soil conditions caused by foreign materials or recent digging. What’s more, as different frequencies can be enlisted in scanning, GPR pulses can reach varying depths and can be altered to suit the subsurface composition. GPR can also be enlisted for concrete scanning, with handheld units scanning ceilings and vertical surfaces.

GPR scans can generally provide the subsurface’s anomalies and objects’ thickness and depth. Finally, they are fitted with mapping integration and capacity and GPS to deliver a pinpoint accurate target area map. This includes the necessary coordinates of the intended range area.

As you can see, this equipment is one of the most efficient pieces of technology for in-depth earth scanning. Industries related to civil structure monitoring typically utilise this technology to provide one of the most accurate depictions of the earth before commencing works.

If you have considered this imperative technology for your application, you will be happy to know that it is one of the most efficient methods for gaining an accurate depiction of the ground’s subsurface objects and anomalies.


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