GPR - Ground Penetrating Radar

Ground penetrating radar (GPR) uses radio waves to detect buried objects in any non-metallic material. Initially used to detect structures in ice, GPR has evolved to include the penetration of soils, rocks and man-made structures.

GPR is used to map the interior of any object penetrable by radio waves, just as X-rays image the internal structure of the body. GPR uses a sensitive detector to record weak radio waves reflected from objects embedded in the material under investigation.

Measurements must be made at many points to ensure accurate representation of the area being examined. A computer records and merges the GPR data to create an image. Hyperbola (arches) displayed on this image indicate the placement and depth of objects in the survey area.

The depth of exploration and image definition depend on the radio frequency used. Low frequencies are used for deep geological mapping. High frequencies are necessary for high definition imaging, such as delineating reinforcing bars in concrete.

Sensors & Software's pulseEKKO GPR systems offer a wide range of frequencies and system configrations for the professional GPR users who require post survey data processing and manipulation capabilities, or those mapping complex regimes. These systems require user input to operate.

The new Noggin Subsurface Imaging Instruments provide a simple alternative to traditional GPR. These systems are "all-in-one" units that contain all the GPR electronics necessary for surveying in a ruggedized shell. These systems are optimal for beginners and those requiring a quick map of the subsurface, with no need for data processing or manipulation.

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