I cannot recommend KB GPR highly enough. The service they provide is second ...
This company is superb. My situation was a bit of a tricky one but they took...
The service I received from KB GPR Surveys was amazing. They were so efficie...
Our dedicated off-road GPR system for surveys of fields and open spaces includes a dedicated side-by-side all terrain tow vehicle (ATV) and a custom made, GPR array which can be interfaced with GPS to accurately collect the topography of the survey area at the same time as the GPR data. This system provides reliable operation on all normal terrain with open skies and allows us to efficiently collect GPR data with a scan density of 30cm and produce very high-quality images. For smaller areas we can deploy GPR towed by hand, using orthogonal grids or GPS integration as appropriate for the area.
When high quality imaging is not required, KB GPR Surveys has a smaller, multi frequency antenna which we can deploy as a single channel system with wider scan spacing.
As with most GPR our antennas are ground coupled (this means that they require direct surface contact to work efficiently), and because they are mounted on a skid which is dragged, we request that the site is cleared and overgrown vegetation is removed before we attend site. Ideally grass should be cropped short.
We travel to the field, review the site and decide on the most practical and efficient survey process – if orthogonal grids are required we will take some time to mark the ground accurately and recover site information. If we are using GPS then this will also be set up and integrated. Once we are ready to begin surveying we will assemble our GPR.
We will then collect GPR data by either pushing, pulling, or towing the GPR across the site in a series of sequential scans until the entire field has been surveyed with the desired scan density. Using our towed array that could be as close as 30cm between scans – alternatively we might use one of our single antenna GPR systems at wider spacing (1m or in some cases 2m).
GPR data will be saved for office based post processing and interpretation.
At our office we import the data into our industry leading software for GPR post processing and interpretation. Using the GPS positioning we can recover the precise positions of each scan in X and Y and the site topography, this will be integrated with the GPR data which is in turn processed to improve its appearance and remove unwanted clutter. The final result is a 3D view which can be interpreted to produce the survey results.