ground penetrating radar Articles
-
The VIY-2 Ground Penetrating Radar
Abstract The VIY-2 ground penetrating radar (GPR) with unique sounding possibilities and use simplicity is presented at this paper. The VIY-2 GPR combines all units (synchronizer, transmitting and receiving modules, power supply and antenna system) into single case. The VIY-2 GPR communicates with computer via standard interface RS232 or USB 1.0. Utilized by the VIY-2 GPR technical solutions ...
-
ImpulseRadar offers a different view
ImpulseRadar offers superior efficiencies that reduce the time spent on both data collection and processing when using multichannel ground-penetrating radar array systems. The last five years have witnessed significant uptake in the use of multichannel ground-penetrating radar (MCGPR) array systems, particularly in the utility space. A key driver for the increasing acceptance of such advanced ...
-
Adaptive Kinetic Antenna
Abstract - The paper describes a method of kinetic antenna development that can be adapted to environmental conditions. The kinetic antenna is a variety of integrated into impulse generator active antenna that is used for kinetic energy accumulation. Such antennas are attractive for ground penetrating radars owing to its possibility to change radiation spectrum in according with ground ...
-
Pulse Shapes from Ground Penetrating Radar
A number of technical reports have discussed the use of ground penetrating radar equipment in examining highway structures for deterioration. Several of these reports provide expressions or calculational techniques that purport to describe the shape of the radar pulse returning from voids within the structure, such as the thin air gap at a delamination within a concrete bridge deck or the larger ...
-
Topographic Correction of GPR Profile Based on Odometer and Inclinometer Data
Abstract— Usually, data obtained by ground penetrating radar (GPR) are displayed as a rectangular 2D picture (profile), vertical and horizontal axes of which are proportional to depth and traveled distance, respectively. Surface, generally, is not horizontal, that leads to distorted view of irregularities in the GPR profile. To eliminate these distortions a topographic correction is used. ...
-
Ground Penetrating Radar for mining
Ground-penetrating radar (GPR) is a well-established technology that has earned its place as the go-to technology for many subsurface imaging applications. No other geophysical method comes close to GPR's ease of deployment, nor the amount of ground that an operator can cover in a typical day. Workers can quickly and efficiently collect quality high-resolution data, which often facilitates ...
-
Staying on the radar for utility mapping
As the underground utility industry develops, so do its standards and technologies. To keep pace with modernisation, ImpulseRadar continues to offer the industry the familiar 2D systems and newer 3D models of its ground penetrating radar solutions. Ground penetrating radar (GPR) technology is vital to utility locating and mapping, with the non-intrusive method allowing for the surveying of ...
-
Forensic applications including mapping and classification of tsunami sand deposits and sand dunes with ground penetrating radar
The coastal region experiences erosional, transportational and depositional events during mega events such as tsunami. The onshore deposits are significant in determining the past events of high–energy events in the coastal region. The Optically Simulated Luminescence (OSL) dating of the sediments by combining Ground Penetrating Radar (GPR) records will reveal the past tsunami events. OSL dates ...
-
Using a Ground Penetrating Radar (Important terms)
Air Low dielectric (~1), high velocity material i.e. EM waves travel almost at the speed of light. In air the emission pattern of GPR antennas is broader than in the ground. It is recommended to place the GPR as close to the ground as possible to direct emission energy further into a material. Some applications of GPR include emission exclusively in air.Ground / Surveyed material Higher ...
-
GPR survey to locate USTs and piping at a retail facility
PROJECT: GPR survey of a retail facility LOCATION: Spokane, Washington PROJECT DESCRIPTION: Designed and performed a tight-line / saturation Ground Penetrating Radar (GPR) survey of an active retail property, to determine the presence, if any, of buried 1950s-vintage underground storage tanks (USTs). Performed onsite instrument "calibration" with known onsite buried features, to establish ...
-
Inspection of Internal Structure of Walls by Subsurface Radar
ABSTRACT This paper deals with the application of ultra-wide band time-domain subsurface radars, equipped with special signal processing techniques, to realize non-invasive image testing of the building walls' internal structure that are made with brick, stone, concrete, reinforced concrete and other construction materials. There are two normally associated problems, qualitative and quantitative, ...
-
What is GPR?
Ground penetrating radar, or GPR, is the most modern and rapidly developing geophysical method. The possibilities of its application are being investigated, the number of tasks that it is capable of solving is increasing, and the equipment is being improved and modified. Today, GPR is used to investigate depths from the first centimeters (e.g. when monitoring the laying of runway surfaces) to ...
By Geotech
-
An Impulse Generator for The Ground penetrating radar
Abstract In last time ground penetrating radars (GPR) are widely used for search and analysis of varied underground objects of natural and artificial origins. Caves and cavities can also be found and investigated with the GPR's aid. Impulse generator is the key unit, which determine GPR's parameters: depth of penetrating, accuracy et al. Serial power drift diodes are used for generation step ...
-
Field evaluation of a new method for estimation of liquid water content and snow water equivalent of wet snowpacks with GPR
Estimates of snow water equivalent (SWE) with ground-penetrating radar can be used to calibrate and validate measurements of SWE over large areas conducted from satellites and aircrafts. However, such radar estimates typically suffer from low accuracy in wet snowpacks due to a built-in assumption of dry snow. To remedy the problem, we suggest determining liquid water content from path-dependent ...
-
Drift Step Recovery Diode Transmitter for High Power GPR Design
Some elements of the modern ground penetrating radar (GPR) determine its performance factor, resolution and depth of sounding. There are impulse transmitter, ultra-wide-band receiver as well as transmitting and receiver antennas. Improvement of the GPR's parameters is usually achieved by modernization of receiving circuits, antenna design, decreasing of input noises and using of complex ...
-
3D model evolution of a leak based on GPR image interpretation
This paper presents some aspects of the time propagation of underground water leakage in controlled laboratory conditions using a drilled polyvinyl chloride (PVC) pipe and interpreting ground penetrating radar (GPR) images. GPR pre-processed images are interpreted for easy identification and extraction of surfaces and volumes of water leakage. Finally, the temporal evolution of a water leak ...
-
Meltwater flow through a rapidly deglaciating glacier and foreland catchment system: Virkisjökull, SE Iceland
Virkisjökull is a rapidly retreating glacier in south-east Iceland. A proglacial lake has formed in the last ten years underlain by buried ice. In this study we estimate water velocities through the glacier, proglacial foreland and proglacial river using tracer tests and continuous meltwater flow measurements. Tracer testing from a glacial moulin to the glacier outlet in September 2013 ...
-
ImpulseRadar - Simplifying GPR for law enforcement
As a non-intrusive method of surveying the sub-surface, ground-penetrating radar (GPR) technology has carved a unique place in the law enforcement arena by helping investigators find and retrieve delicate material without the need for digging. Over the years, GPR has also been used to locate clandestine graves of homicide victims, buried caches of incriminating evidence, and more. And unlike ...
-
ImpulseRadar’s Latest Addition Facilitates Productive Utility Location
Swedish-based GPR manufacturer, ImpulseRadar, might be a new name to the utility location industry; however, the company is rapidly developing a reputation as an innovator. The company recently introduced its newest product, PinPointR, an intuitive GPR utility locator instrument for the dependable location of underground assets. ImpulscRadar is a rapidly growing utility location manufacturer, ...
-
Technology Array Enables Linked Surveys above and below the Surface
Consultants at GEL Geophysics LLC, a geophysical and subsurface utility engineering consulting firm based in Charleston, South Carolina, in collaboration with the Ontario, California, office of David Evans and Associates Inc., a professional consulting firm, have combined existing surveying technology to create a system that is far more than a sum of its parts. The innovation is a multi-sensor ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you