TR-GEO-01-08

Georadar TR-GEO-01-08 is designed for sounding in soils and rock with low and moderate attenuation of radio waves: in sandy soils, moist and dry, in dry clay loam, in rock, limestone, permafrost.

Application:

-  Construction of underground communications (detection of previously laid pipes, cables, engineering trenches and underground structures).

- Defects checking of building structures, roads, bridges.

- Searching for underground tunnels, communication, soil and reservoir's bottom heterogeneity, as well as ammunition caches, graves, gullies under the road, etc.

-    Sounding of various metallic and non-metallic objects, having rather large size (not less then about 0.3-0.5 m), cables, pipes.

-   Drawing of geological sections of upper layers of a ground, finding of boundaries of water lenses, alluvia.

-   Sounding of cavities and moist areas under road pavement.

-   Sounding of cracked areas in rocks, filled by water.

-   Sounding of karst cavities, big stones.

-   Search of anti-tank mines, unexploded ordnance.

In the georadar TR-GEO-01-08 pulse method of sounding is used. Short electromagnetic pulse is induced by a generator, radiated by the transmitting antenna, propagates through the ground, reflected by some objects of sounding, and comes back to the receiving antenna. Objects of sounding are artificial objects and also natural heterogeneities of a soil, differing from neighboring soil in dielectric permittivity and conductivity, and having sufficiently large size.

A final result of the sounding and processing of signals is radiolocation image of objects and heterogeneities of a soil, imaging of reflecting boundaries and objects, obtained by the processing. The image may be 3-dimensional (3-D), as a number of vertical and horizontal sections of a volume. The image does not give the distribution of dielectric permittivity (density and moisture of a soil), but shows only reflections from boundaries  between  different  layers  of soil  and  heterogeneities or objects. Uniform medium (soil) will not be visible.

By georadar sounding one can distinguish metallic objects or moist areas from cavities in the ground by sign of reflected signal (by colors on radiolocation image).

Main features:

•     Shielded (slot) antennas, low radiation to back direction.

•     Good quality of sounding pulse.

•        The georadar can work in real time with a computer or independently without a computer with saving the data into built-in flash memory.

•     Water proof (hermetical) antenna units, separable replaceable batteries.

•     Convenient foldable design of antenna unit, fast preparation for work.

•     Using of video-camera, storing of video frames with the results of sounding.

•      Certificate of compliance with European standards on electromagnetic compatibility

ETSI EN 302-066-1 and -2 V1.2.1: 2008.

Approximate estimation of depth of sounding:

-   in dry sandy soils, rocks, permafrost –      up to 20 m,

-   in wet sandy soils, limestone -                up to 10-12 m,

-   in dry clay loam -                                  up to 5-7 m,

-   in wet clay loam -                                 up to 1-5 m.