Ground Penetrating Radar
Successfully used on a vast range of mediums, our GPRs are able to identify and inform us on exactly what is happening under your surfaces as required.
What is a Ground Penetrating Radar?
A Ground Penetrating Radar (GPR) transmitter operates by transmitting electromagnetic energy into a subsurface and recording the reflected pulses which bounce back as they encounter discontinuities. These discontinuities are likely to exist in the form of a boundary or interface between materials with different dielectrics. In the same vein, they could likewise be a subsurface object such as a debond or delamination. Changes in subsurface are detected and recorded due to differences in permittivities by receiving antennas and variations in the return signal, all of which are displayed on a radargram. The amplitudes of the received echoes and corresponding arrival times are thus used to identify the location nature of the discontinuity.
More about our GPR SERVICEs
GPR equipment can be powered from an assortment of different power supplies such as small and internal rechargeable batteries, vehicle batteries or normal 110/220-volt. In addition, for each power source type, connectors and adapters are available.
GPRs detect objects which stand hidden within a homogeneous or quasihomogeneous medium. This is done by EM waves leaving the GPR antenna, which then bounce back when they hit an object whose dimension results are greater than the wavelength.
Depth of Detection
In low conductivity materials, detection can reach depths of up to 100 feet (30 meters). Denser materials, however, often absorb GPR signals and thus are limited to a detection of 3 feet (1 meter) or less.
Ground Penetrating Radar FAQs
We’re here to help! Here you’ll find the answers to the questions we get asked the most about Ground Penetrating Radars. If you would like to know more, get in touch for a free consultation.
- What is a Ground Penetrating Radar?
A GPR is a technological equipment used in order to locate and identify objects which may be subsiding and hiding under a particular surface. GDRs consist of real-time technology which use high frequency radio waves as a means to yield high resolution data in a short period of time.
- How do Ground Penetrating Radars work?
GPRs operate by transmitting electromagnetic energy into a subsurface and recording the reflected pulses which bounce back as they encounter discontinuities. The way the electromagnetic energy is reflected back allows the GPR to gather information and understand certain aspects about the object it has encountered.
- What can Ground Penetrating Radars detect?
GPR tehnology is used in order to detect subsurface objects such as concrete, pipes, metals, asphalt, cables masonry, and more, as well as changes in material properties and any voids and cracks existing below the surface under examination. It can do so on a plethora of mediums such as rock, clay, sand, soil, ice, water, pavements, structures and beyond.
- How much does a Ground Penetrating Radar survey cost?
Depending on the level of service you’re looking for, GPR surveys comes in many different forms and with varying price tags. The technology can be used on a variety of different surfaces and to identified a wide range of elements across different sized surfaces. Overall, however, costs are likely to start from £750.
- To what depth can Ground Penetrating Radars detect?
The depth to which GPRs can detect is fully dependent on the surface it is aiming to undergo analysis on. On surfaces made of low conductivity materials, such as such as granite or dry sand, detection can reach depths of up to 100 feet (30 meters). On denser materials, such as shale or wet clay for example which often absorb GPR signals, detection is often limited to 3 feet (1 meter) or less.