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GPR Survey Newsletter Archive

Ultra Receiver – Revolutionizing Low Frequency Data

Learn how the pulseEKKO® Ultra Receiver is revolutionizing the way low frequency GPR data is collected and interpreted with its unique ability to increase the depth of penetration through stacking.

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GPR Uncovers a Lost Chapter of History

Archeologists used the LMX200® to provide nondestructive, real time insights that guided a subsequent excavation to successfully discover a lost chapter of our Canadian history

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GPR Sounding in Water – EKKO Update

To celebrate 25 years of technical advances and helpful hints via our quarterly newsletter, we want to showcase how past articles are still relevant.

This article was published in our EKKO UPDATE newsletter in October of 1994 and is still applicable today!

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Congratulations to #UsingYourNoggin Contest Winners! Winners Story Contest John Vanderlaan Edward Eastaugh Jarrod Burks Photo Contest

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FINDAR® – Enhanced Features for Forensic Investigations

FINDAR® – Enhanced Features for Forensic Investigations Evidence Discovery T he FINDAR® GPR system was created for law enforcement to use ground penetrating radar (GPR) technology to search for evidence buried under the ground.  The advantage of GPR compared to other commonly-used subsurface search technologies, such as metal detectors, is its ability to detect non-metallic

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“Bodies” located with Noggin® GPR

“Bodies” located with Noggin® GPR A forensic field school exercise T here are many applications for GPR in the field of law enforcement and security. One common application is to locate forensic evidence at a crime scene. In these cases, evidence is usually a body, weapon or a container which may contain drugs, money or documents. Many law enforcement agencies worldwide are using GPR to

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The Power of Average Trace Amplitude (ATA) Plots | GPR

The Power of Average Trace Amplitude (ATA) Plots P lotting the average of all the traces in a GPR cross-section shows the response character versus time and provides the user with insights and key understandings of the nature of the data.   GPR lines are commonly displayed in varying colors based on signal amplitude (Figure 1a).  However, the best way to show trace data is

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The New pulseEKKO® Ultra Receiver | Sensors & Software Inc.

The New pulseEKKO® Ultra Receiver Raising the Bar (and Lowering the Noise Floor!) Sensors & Software is proud to introduce the latest evolution of pulseEKKO® – the Ultra Receiver. The new pulseEKKO® Ultra Receiver builds on the world-renowned capability of the pulseEKKO® GPR brand. Data acquisition is now thousands of times faster than before. This has huge implications for

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Detecting and Identifying Water Fraud

Detecting and Identifying Water Fraud using GPR | Sensors & Software Inc.

Detecting and Identifying Water Fraud Every year millions of dollars in water disappears from taxpayer-funded and private water distribution systems around the world. This invisible drain on the economy is a problem that governments and enforcement agencies worldwide have been struggling to deal with for decades. While some loss to leakage does occur, in some cases fraudsters are paid by

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Noggin GPR helps find and remove bombs from German Airfield

Noggin® GPR helps find and remove bombs from German Airfield

Noggin GPR helps find and remove bombs from German Airfield During World War II, bombs were dropped throughout Germany, the UK and other European countries. Many of these bombs failed to detonate and were buried in the ground. Now, more than 70 years later, these hidden threats – unexploded ordnance (UXO) – remain buried underneath urban centers and rural lands. Today, in Germany, it

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Notes from the Classroom: Student-Led Science using GPR

Notes from the Classroom: Student-Led Science using GPR Sensors & Software supports the use of GPR in educational facilities around the world. We provide materials to assist instructors in teaching the theory behind GPR as well as providing free software licenses for laboratory computer rooms. We also offer GPR systems for field schools and special research projects. Below, Dr. Del

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Conquest®100 - Going Beyond Rebar Locating

Conquest® 100 – Going Beyond Concrete Rebar Locating

Conquest® 100 – GPR Going Beyond Rebar Locating Since the first generation of Conquest®100 ground penetrating radar (GPR) was unveiled in 2001, Conquest® 100 has been helping contractors locate embedded objects in concrete. In most cases, professionals are looking for rebar, conduits and post-tension cables to avoid them when cutting or coring concrete. In other scenarios,

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When utilities cannot be located through traditional means, locating professionals bring in the LMX200TM to get the job done.

Mystery Solved – The “Non-Locatable” Pipe Located | Subsurface Imaging

Mystery Solved – The “Non-Locatable” Pipe Located LMX200™ GPR locates a PVC water pipe It’s no secret that there is a tremendous amount of infrastructure buried under our feet. Knowing where services are located is an ongoing challenge given the rapid rate at which installations are taking place. Ground Penetrating Radar (GPR) is a proven, cost-effective solution to help

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Automating Borehole GPR Surveys | Sensors & Software Inc.

Automating Borehole GPR Surveys S ensors & Software has developed a borehole winch to provide rapid acquisition of zero-offset profiles and multi-offset gathers when using the pulseEKKO® borehole system. The motor-driven winch provides automated positioning through a distance encoder which also triggers data acquisition at fixed depth intervals, making borehole data collection more

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Spidar GPR

NEW! Concurrent Receiver Operation with SPIDAR® | Georadar

NEW! Concurrent Receiver Operation with SPIDAR® Modern GPR systems are very easy to operate and much of the complexity of the underlying electromagnetic (EM) signal character is hidden from the user. In fact, GPR signals are electromagnetic fields which are invisible to the human, vector in nature and spread out over space and time. The ability to capture GPR signals in three dimensions

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Evaluating Ice Road Quality with IceMap™

Evaluating Ice Road Quality with IceMap™ W inter roads are operated in many cold weather regions to provide transportation for communities that are otherwise only accessible by air, or to reduce travel time during the winter by providing a shorter, more direct route to the community. Winter roads frequently cross frozen bodies of water, such as lakes or rivers, and require considerable

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Ground Penetrating Radar for Flood Damage Assessment

GPR for Flood Damage Assessment In the spring of 2017, southern Quebec, Canada had unprecedented rainfalls and widespread flooding. Rivers in the Montreal area burst their banks and submerged communities. In one community, a local pedestrian pier was completely submerged under 3 feet of water for 2 weeks. After the flood waters subsided, there was visible damage to the pier. There were

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Using GPS elevation with GPR

TIPS: Using GPS elevation with GPR | Sensors & Software Inc.

TIPS: Using GPS elevation with GPR (Georadar) When we think about GPS, we usually only think about our lateral position on the Earth, or, in other words, our XY position. But GPS also provides Z, your elevation. If you are collecting GPR data with GPS, the elevation is pretty much free information. When GPR data with GPS files are opened in the EKKO_Project software, the software

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Underground Utility Locating with GPR?

Utility Locating with GPR? – Get the most out of your data! GPR is now a complementary tool to EM when locating buried utilities. Unlike active EM methods where an individual utility is excited, GPR sees any buried feature that differs from its surroundings which can result in many targets being observed. This article focuses on getting the most out of your utility data in two common but

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An Ancient Synagogue Lost and Found

An Ancient Synagogue Lost and Found Sixty years after the Great Synagogue and Shulhoyf of Vilna (Vilnius) was razed, a team of international scientists is uncovering precious history with the assistance of pulseEKKO® ground penetrating radar (GPR). The city of Vilnius has been recognized as an important cultural and scientific hub as far back as the

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LMX200 and Subsurface Utility Engineering

LMX200™ GPR and Subsurface Utility Locating

LMX200™ GPR and Subsurface Utility Locating A California city planned installation of a new water line with the alignment crossing several busy intersections. Extensive buried infrastructure existed beneath the intersections but the accuracy of existing as-built drawings was in question.

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Common Mid-Point survey using the DVL-500P

TIPS: Common Mid-Point GPR surveys using the DVL-500P O ne of the advanced surveys that can be conducted with a bi-static GPR system like the pulseEKKO (see accompanying story), is a Common Mid-Point survey. A CMP survey provides a simple way of measuring GPR velocity in the ground or other material; critical information for determining the depth of a target. The

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The New pulseEKKO - GPR with No Limits

The New pulseEKKO® – GPR with No Limits | Sensors & Software Inc.

The New pulseEKKO® – GPR with No Limits B efore there was Noggin®, Conquest®, LMX® or

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The Advantage of Conquest Depth Slices

The Advantage of Conquest® Depth Slices

The goal of using GPR in concrete structure assessment is to define the internal structure prior to cutting and coring. Knowing what’s there prevents structural damage and improve safety. Conquest® users face the operational challenge of how to most cost effectively achieve this goal which usually takes the form of accurately marking the location of embedded structures.

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Measuring GPR Velocity for Water Content Estimation

Measuring GPR Velocity for Water Content Estimation

Measuring GPR Velocity for Water Content Estimation The GPR wave velocity provides direct and indirect benefits. First, knowing velocity is essential for the calculation of the depth of an object that appears in a GPR data section. Second, less commonly known, GPR velocity can be used to infer another physical property when an empirical relationship between velocity and the other physical

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Depth Slicing without a Grid

GPR | Depth Slicing without a Grid

Depth Slicing without a Grid Many GPR users dislike setting up survey grids; the complaint is that it takes time and is not easy. Sensors & Software has recommended grid collection for two decades because, simply put, it generates data with reliable area coverage and results in better subsurface imaging, hence making interpretation easier. The most spectacular GPR data is almost always

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What is GPR

What is GPR?

What is GPR? About Ground Penetrating Radar (GPR)   GPR (Ground Penetrating Radar) is the general term applied to techniques which employ radio waves, typically in the 1 to 1000 MHz frequency range, to map structures and features buried in the ground (or in man-made structures). Ground Penetrating Radar works by emitting a pulse into the ground and recording the echoes that result

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A map view of the data on Google Earth

Tips: Automatic Output Files

Tips: Automatic Output Files Having a GPS connected to an LMX200™ or Noggin® GPR system automatically generates simple, standard output files that clearly communicate the position of underground features – without the need of any GPR processing software. During data acquisition, the GPS records the survey paths of all GPR lines and grids collected in a GPR project. When the GPR

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Cemetery Data – “Grave” Interpretational Mistakes

Cemetery Data – “Grave” Interpretational Mistakes Surveying cemeteries is a common application for GPR due to its ability to detect non-metallic objects like coffins. It is also possible to find burials, even without coffins, by detecting the disturbed soil associated with digging the grave. But, for cemetery surveys (and many other types of surveys for that matter) keeping an open mind

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Concrete Scanning & Detecting voids under foundations

Concrete Scanning & Detecting voids under foundations Using GPR to ensure construction safety A Texas refinery, knowing there was a high risk of voids given the soil conditions in their area, used GPR to scan for voids prior to commencing a construction project where heavy cranes would be used. GPR provided a subsurface map of what risks lay beneath the surface. Challenges Throughout

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IceMap in Iceland

IceMap™ in Iceland | Sensors & Software Inc.

IceMap™ in Iceland Iceland is the island of fire and ice in the North Atlantic Ocean. The island is volcanically active (remember the eruption of the Eyjafjallajökull volcano in April, 2010 that disrupted air traffic across the Atlantic and Europe for days) but glaciers cover about 11% of the country. Iceland generates 99% of its energy from renewable sources: hydroelectric and

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Person on a parking lot using the Noggin 1000 GPR

You Never Know What You’ll Find …

You Never Know What You’ll Find… Noggin® 1000 GPR systems are regularly used for shallow, high resolution imaging on and around building infrastructure, but sometimes, during a survey, you may find something totally unexpected During a recent GPR training course in Christchurch, New Zealand, everyone in the class, including the trainer, were shocked to find what was revealed by GPR.

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Noggin® GPR survey at a late 19th century brick factory

Noggin® GPR survey at a late 19th century brick factory Nelsonville, Ohio is a small Appalachian community in southeastern Ohio on the Hocking River. The region is known for its beautiful wooded hills and hollows and its thick buried clay layers deposited at the end of the last ice age. In the late 1800s it was one of the region’s most famous brick manufacturing centers, and the

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Noggin GPR

Announcing the new Noggin® GPR system

Announcing the new Noggin® GPR system AThe new Noggin® is an adaptable high-performance GPR system. It provides professional users with the highest quality GPR data, flexible data collection and powerful in-field analysis with reporting. Adapt to any application Noggins are available in 4 different center frequencies, ranging from 100 MHz for deep penetration to 1000 MHz for

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People using Ground Penetrating Radar equipment from Sensors & Software

TIPS: Collecting grid data around obstacles

TIPS: Collecting grid data around obstacles There are times when you must deal with an obstacle in your grid survey area. You may encounter this in cemeteries, wooded areas or even at gas stations. With the Noggin® GPR systems, collecting data around obstructions is flexible, easy and accurate. When you approach the obstruction and can go no further, end that grid line. You have the

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Person pushing lmx across pavement

LMX100™ for Buried Utility Locator | Sensors & Software Inc.

LMX100™ Redefines Buried Utility Locating The detection and mapping of buried utilities is a major application area for GPR. Using radio waves, GPR offers a rapid way to accurately locate metallic and non-metallic utilities as well as other ancillary targets such as underground storage tanks, splice pits and buried manholes. GPR complements traditional electromagnetic (EM) methods of

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Police officers using FINDAR

Tips – Forensic Investigations

Tips – Forensic Investigations GPR is a go-to tool for law enforcement professionals searching for buried forensic evidence. Here are a couple of tips when using GPR for forensic investigations. 1. Find Evidence, not Rocks GPR technology is very sensitive to material changes which can result in many responses. The challenge is to differentiate responses from rocks, soil variations and

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people collecting data using Sensors & Software equipment

GPR Helps Solve the Mystery of the Hole in the Dune

GPR Helps Solve the Mystery of the Hole in the Dune Mt. Baldy, in the eastern part of the Indiana Dunes National Lakeshore, is the largest active dune along the southern Lake Michigan shoreline and a popular recreational facility for local residents and tourists (Figure 1). In July 2013, a 6-year-old boy walking on the dune fell into a hole that suddenly opened up underneath him.  He was

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Smart Chariot being towed behind car

Streamline your Data Collection with SmartChariot

Streamline your Data Collection with SmartChariot Our customers are always looking for ways to simplify GPR data collection and increase productivity in the field. This is especially true when large areas need to be surveyed; covering these areas with a GPR cart or hand-towed configuration is usually too time-consuming or simply not feasible. To meet this need, Sensors & Software designed

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Construction worker using an LMX200

GPR for Underground Utility Locating | Sensors & Software Inc.

Underground Utility Locating A key part of project planning is knowing exactly what lies beneath the surface at a site. This case study demonstrates a common use of GPR. Ground Penetrating Radar (GPR) use radio waves to non-destructively locate objects and subsurface structures in materials like soil, rock, concrete, asphalt, wood and water. Sensors & Software Inc. is a GPR

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Using the Water Table Reflection to Add Topography

Using the Water Table Reflection to Add Topography The interface represents a very large change in electrical properties. The reflection from this interface can be one of the strongest interfaces seen with GPR. Water and air represent the most extreme relative dielectric constant (K) values. Dry sediments with air in the pore space has a low bulk dielectric permittivity of about 5. Below the

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Advantages of Integrating GPR in Concrete Inspection

Advantages of Integrating GPR in Concrete Inspection Today, more than ever, owners and managers of real estate are driven to build and renovate their properties to be among the most attractive in order to net the largest possible return on their investment.  Price-Waterhouse-Coopers recently released a report that predicts 2015 will be a year of active buying, developing and rehabbing of

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Workflow for Concrete Scanning

Workflow for Concrete Scanning During our training courses, we get many questions from new users about the practical side of concrete scanning. Learning to operate the equipment is fairly straight-forward and users improve their interpretation skills the more they use it. But to really be successful as a service company, it’s important to follow a suitable workflow that ensures you are

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