Epitome is a GPR Survey Company in India
GPR Survey operates by transmitting high-frequency radio waves pulses down into the ground through an antenna.
Ground Penetrating Radar survey is distinctly able at not only mapping buried structures but also relatively measuring
their depth, and supplying an all-important thorough detail.
The antenna is moved over the surface to be inspected. The transmitter redirects a diverging beam of energy which is
reflected in various underground objects or different contacts between different earth materials.
The radargram measured on the vertical scale is in units of the two-way travel time, that’s the time taken by the EM wave
to travel down to a reflector and back to the surface. The travel time then is transformed into depth by relating it to on-site
measurements or assumptions about the velocity of radar waves in the subsurface material under investigation. Radar
wave speeds vary between 60–175 mm/ns for most geological materials.
GPR waves can travel almost 30 meters deep in low conductivity material, as in case of dry sand or granite. Clays, shale,
and other high conductivity materials may lessen or absorb GPR signals, leading to the reduction in depth of penetration to
1 meter or less. The GPR antenna can determine the depth of penetration as well.
The selection of antennae is based according to the depth of interest and the size of the target. Penetration depth varies in
contrast to the frequency. The higher the central frequency of antenna, the smaller will be the object size to be resolved.
Higher antenna frequencies give higher resolution, but less penetration, and vice versa. The lateral and vertical resolution
of the results varies from 0.01 to 1.0 meters, as per the choice of antenna frequency. Use of antennae having lower
frequency in geological mapping is done to obtain the maximum penetration depth while higher frequencies are used in
non-destructive testing for high-resolution imaging. Having a range of frequencies available (usually 50MHz–2.5GHz) makes
GPR most suitable for identifying objects of different sizes at different depths and under different ground conditions. We
are one of best Ground Penetrating Radar survey Services, Best Underground Utilities Survey Services and GPR
Survey Service in India.
GPR is:
 A geophysical- approach that is, precise, fast and high-resolution for subsurface investigation.
 Non-invasive, non-destructive and completely safe procedure.
 One and only possible non-intrusive method capable of accurately locating non-metallic subsurface features and
utilities (example- clay, concrete, fiberglass, PVC conduits or fiber-optic cables).
 A geophysical survey technique based on transmitting pulsed electromagnetic (EM) energy into the subsurface
and ascertaining the strength of the reflected energy.
 Effective in case enough contrast in material properties (dielectric permittivity) between a buried target and its
surroundings exists.
 Applied by Epitome in order to detect and map buried pipes, cables, structural reinforcement, voids, disturbed
ground, material degradation, subsurface layers and buried objects.
 Gained by use of transmitting and receiving antennae which can be mounted on a cart, skid plate or vehicle, or
can be hand-held.
 A technique that allows skilled and experienced personnel to attain distinct survey data and geophysical
expertise to process and interpret the results.

Detect and figure out buried structures including utilities, foundations, reinforcing bars, cavities, tombs, archaeological
artifacts, and animal burrows. Subsurface piping leak detection and leak impact assessment (presence of washouts or
voids). If you are looking for Ground Penetrating Radar Survey Services, Best Underground Utilities Survey Services and
GPR Survey Service in India then you are at the right place.
GPR survey is a non-destructive, surveillance tool for general sub-surface mapping (soil/rock horizons, depth to water table
etc.) and locating buried objects prior to invasive investigation.GPR is useful in the planning and location of follow-up
intrusive sampling programs (trial pits, boreholes, coring).
Mapping asphalt structure and concrete pavement, for better maintenance and rehabilitation decisions
Identifying and locating voids and zones of construction degradation (concrete layer thickness and water content)
Quality Assurance Control of new structures or existing constructions for rehabilitation purposes
Quality Assurance Control of new structures or existing constructions for rehabilitation purposes
Epitome offer these services SUE Survey in India, GPR Survey Service in India, Ground Penetrating Radar Survey,
Underground Utility Survey, Ground Penetrating Radar Survey in India, Underground Utility Survey in India, Ground
Penetrating Radar Survey Company in India, Underground Utility Survey Company in India, SUE Survey Company in India,
Underground Scanning and Mapping.
Visit Our Website: Epitomegs.com