To find buried evidence, investigators in the past have had to rely on hit and miss, time consuming excavation techniques, which can be destructive as well as costly. Investigators around the world have begun using Ground Penetrating Radar (GPR) to look for buried objects. Virtual Underground has an experienced radar service team ready to meet your locating needs.
Virtual Underground uses an advanced Ground Penetrating Radar (GPR) array to find subsurface objects made from many common materials. GPR sends a series of electromagnetic pulses into the ground. When they encounter a change in the soil (such as a buried object) the waves are reflected back to the surface. These are recorded by the instrument. From these reflections, the position and depth of objects can be determined. By keeping careful track of the measurements, a map is made of the site with the objects of interested highlighted.
Most companies offering ground penetrating radar services only have the capability to use single channel radar systems. These devices excel at certain limited tasks, but most projects are better suited to using a multi-channel radar system. The TerraVision™ 3-D ground penetrating radar array (developed by Geophysical Survey Systems Inc.) is capable of efficiently collecting data over large areas. By creating a large continuous map, the array can resolve complex structures. The area can then be visualized in a manner similar to medical ultrasound or MRI scanning. This technique is ideal for mapping complex underground conditions. For smaller jobs where the TerraVision is unable to maneuver, we utilize the single- channel Utility Scan™ system.