Ground Penetrating Radar (GPR)

Ground Penetrating Radar (GPR):

What is Ground Penetrating Radar?

Ground Penetrating Radar or rather.. GPR is a type of detection equipment that is used for locatating sewer & utility lines below ground. Ground Penetrating Radar is a geophysical method that uses radar pulses to image the subsurface. This nondestructive method uses electromagnetic radiation in the microwave band (UHF/VHF frequencies) of the radio spectrum, and detects the reflected signals from subsurface structures. Additionally, all surface penetrating radar equipment is used for locating conduit, void detection, rebar imaging and other underground utility locating. and all of our utility locating equipment meets and exceeds all standard FCC regulations.

Ground-penetrating radar antennas are generally in contact with the ground for the strongest signal strength; however, GPR air-launched antennas can be used above the ground. Cross borehole GPR has developed within the field of hydrogeophysics to be a valuable means of assessing the presence and amount of soil water.

Ground-penetrating radar (GPR) or rather GPR uses high-frequencies from 40 to 1,500 MHz, ElectroMagnetic pulse transmitted from a radar antenna to probe the earth in search of Post Tension Cables, Pipes, Rebar, Conduits and Concrete Depth in order to image the subsurface and to collect and record very important information rearding the subsurface in order to get the neccessary ok for doing any construction work.

Ground-penetrating radar is also known to use a variety of technologies to generate the radar signal itself, and such signals are impulse, stepped frequency, frequency-modulated continuous-wave, and noise. GPR Systems on the market also use Digital signal processing to process the data during the survey work rather than off-line.

A special kind of GPR uses unmodulated continuous-wave signals in order to discriminate different types of landmines in the soil, or cavities, defects, bugging devices, or other hidden objects in walls, floors, and structural elements.

GPR is used on vehicles for close-in high-speed road survey and landmine detection as well as in stand-off mode.

Pipe Penetrating Radar (ppr) or rather, PPR, is a GPR technology applied in underground utility pipes where the signals are directed through the pipe and conduit walls to detect pipe wall thickness and voids behind the pipe walls.

AdvancedWorld.com offers ground penetrating radar equipment for residential, commercial, industrial and archaeological sites around the world.

 

 

 

United States Underground Utility Locating

In United States, Uniform Color Codes for temporary marking of underground utilities are below:

Red: electric power lines, cables, conduit, and lighting cables
Orange: telecommunication, alarm or signal lines, cables, or conduit
Yellow: natural gas, oil, steam, petroleum, or other gaseous or flammable material
Green: sewers and drain lines
Blue: drinking water
Purple: reclaimed water, irrigation, and slurry lines
Pink: temporary survey markings, unknown/unidentified facilities
White: proposed excavation limits or route

 

 

 

 

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