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Bigman Geophysical - LearnGPR
Добавлен 16 июн 2016
LearnGPR.com's channel offers free training videos on Ground Penetrating Radar to help utility locators, civil engineers, and archaeologists upgrade their skills.
LearnGPR.com's website provides the best training for ground penetrating radar on the internet through fun, easy to follow, high-quality courses.
LearnGPR.com's website provides the best training for ground penetrating radar on the internet through fun, easy to follow, high-quality courses.
Scanning CMU wall with GPR | ground penetrating radar | concrete construction |
In this video we review how to scan CMU walls with GPR. We show the difference between an empty cell with a reflection off the air gap and a concrete filled cell reinforced with steel.
Просмотров: 1 563
Видео
Calculate Parameters for Low Frequency GPR antenna | ground penetrating radar | geophysics
Просмотров 1,9 тыс.10 месяцев назад
This video was requested by a viewer that was working with a 100 MHz ground penetrating radar (GPR) antenna in limestone and was looking to investigate down to 7 meters below the ground surface. In this video I share the two main parameters that viewer will have to calculate to make sure his investigation is going to reach 7 meters and will have a close approximation of a full waveform with min...
How to set up a Fisher Labs TW-6 Split Box | Single person induction sweep | Utility Locating
Просмотров 2,4 тыс.11 месяцев назад
In this video we show how to set up and use a Fisher labs. TW6 split box. Will show how to zero out the instrument and test it over a known target. You can adjust the sensitivity after zeroing out the receiver which can be helpful in noisy environments. This is an excellent tool to use when a two-person sweep is impractical.Single person sweeps use the principles of induction where the transmit...
Sensors & Software LMX Ground Penetrating Radar Quickstart Guide | GPR | Utility Locating Geophysics
Просмотров 7 тыс.Год назад
In this video we provide an overview of the LMX systems (relevant for LMX 100, 150, and 200). This unit is easy to use, lightweight, and rugged. It can be used for utility locating, archaeology, forensic investigation, civil engineering, geology and geotechnical engineering, etc. We cover set up, line scans, basic processing, interpretations, and grid scans. If you use GPR and didn't know how t...
Proceq GS8000 Quickstart Guide Video
Просмотров 4,2 тыс.Год назад
In this video we go over the Proceq GS8000 SFCW ground penetrating radar used to map the subsurface. This is a great tool with a very wide range of frequencies and allows both the use indoor and outdoor because of the dual antenna arrangement. The system gives the user the ability to conduct extensive realtime processing, interpretations, and more. Let us know if you have any questions, need a ...
Quick Start Guide on the Leica DSX ground penetrating radar | utility locating | GPR | subsurface
Просмотров 2,6 тыс.Год назад
This video is a quick start guide on the Leica DSX ground penetrating radar system. This GPR has a 600 MHz antenna, with easy to use functions for new GPR users. It is primarily built with the utility locator in mind and offers many mapping features, onboard 3D modeling, instant reporting, etc... I hope this video is helpful! If you would like to learn more about what we do, please check us out...
Using Geonics EM38b conductivity meter to locate & map subsurface pipes & utilities | ASCE 38-22
Просмотров 1,6 тыс.Год назад
In this video we show some basics of using electromagnetic induction (conductivity) to locate underground pipes and utilities. This tool is easy to deploy and has the possibility of identifying pipes, utilities, USTs, voids, and other subsurface objects. It is an important instrument that everyone conducting subsurface utility locates, geophysical investigations, archaeology and forensics, or e...
How to Stripe Scan with PD8050 Ultrasonic Pulse Echo | Proceq | Screening Eagle | Concrete Testing
Просмотров 2,3 тыс.Год назад
In this video we discuss how to conduct a stripe scan with the PD8050 manufactured by Screening Eagle Proceq. This is a perfect tool to use for structural engineering and concrete testing. Can identify defy cracks, honeycombing, slab thickness, and more. If you would like a rental or demo of this unit, visit us at bigmangeo.com.
Proceq GP8000 GPR Quick Start Guide | Ground Penetrating Radar | Concrete Scanning | Inspection
Просмотров 9 тыс.2 года назад
The proceq GP8000 is a stepped frequency continuous wave ground penetrating radar for concrete scanning and structural engineering applications. It has a broad bandwidth which allows the user to image small shallow objects and deeper ones. It also has a live wire detector to assist in identifying conduit. If you found the video useful, please like it and subscribe to the channel.
Proceq PD8050 Quick Start Guide | Ultrasonic Pulse Echo | Concrete scanning | Structural Inspection
Просмотров 3,5 тыс.2 года назад
In this video we go through the basic set up, velocity calibration, and data collection using the Screening Eagle Proceq PD8050 multichannel ultrasonic pulse echo unit applied to concrete scanning and inspections. This is a great tool for civil and structural engineers to identify embedded objects such as steel rebar or Post Tension cables, or to help evaluate concrete health by identifying def...
Leica DS2000 Quick Start Guide | Ground Penetrating Radar | Subsurface Utility Locating and Mapping
Просмотров 19 тыс.2 года назад
Sign up for a full set of tutorials on the Leica DS2000 GPR system go to: bigmangeo.com/blogs/tutorials/leica-ds2000-tutorials The Leica DS2000 is a dual-frequency ground penetrating radar systems is designed for subsurface utility locating and other non-destructive geophysical applications. The 700 MHz and 250 MHz antennas help the user be more efficient and the easy to use software assists ne...
IDS Cthrue, a quick start guide | how to scan concrete with GPR | ground penetrating radar
Просмотров 3,3 тыс.2 года назад
In this video we review the basic functions of the IDS Cthrue GPR (ground penetrating radar) system for concrete scanning. We summarize the operating mode, Data acquisition, filtering message, set up menu, and more. Get a quote on rentals or purchases for this and other concrete inspection technologies for construction and structural engineering at bigmangeo.com.
"How To" tips to locate pipes using Jameson Duct Hunter traceable rod | underground utility locating
Просмотров 2,7 тыс.2 года назад
"How To" tips to locate pipes using Jameson Duct Hunter traceable rod | underground utility locating
Rycom Snaptrack quickstart guide and how to | utility locating tutorial
Просмотров 6 тыс.2 года назад
Rycom Snaptrack quickstart guide and how to | utility locating tutorial
How to find Gradebeams in concrete using GPR | ground penetrating radar
Просмотров 2,5 тыс.2 года назад
How to find Gradebeams in concrete using GPR | ground penetrating radar
Creating new learning options for 2022!
Просмотров 4062 года назад
Creating new learning options for 2022!
Free Introduction to GPR Webinar | Ground Penetrating Radar | Original webinar | What is GPR?
Просмотров 8 тыс.2 года назад
Free Introduction to GPR Webinar | Ground Penetrating Radar | Original webinar | What is GPR?
Does GPR "see" the Marker or Pipe? | ground penetrating radar | utility locating
Просмотров 2,8 тыс.3 года назад
Does GPR "see" the Marker or Pipe? | ground penetrating radar | utility locating
What is the dielectric constant of hydrogen gas? | ground penetrating radar | utility locating
Просмотров 3103 года назад
What is the dielectric constant of hydrogen gas? | ground penetrating radar | utility locating
How to locate a Sonde | underground utility locating | pipe locating
Просмотров 1 тыс.3 года назад
How to locate a Sonde | underground utility locating | pipe locating
Using an Extech Cable Locator CLT600 to locate a gas line...
Просмотров 1,1 тыс.3 года назад
Using an Extech Cable Locator CLT600 to locate a gas line...
Beware The Airwaves From Trees | Ground Penetrating Radar (GPR)
Просмотров 1,9 тыс.3 года назад
Beware The Airwaves From Trees | Ground Penetrating Radar (GPR)
GPR Tip #476 - use teamwork to squeegee flooded sites
Просмотров 2783 года назад
GPR Tip #476 - use teamwork to squeegee flooded sites
Clarifying my comments on Cross Polarization, PT, and Rebar | ground ponetrating radar (gpr)
Просмотров 1,6 тыс.3 года назад
Clarifying my comments on Cross Polarization, PT, and Rebar | ground ponetrating radar (gpr)
GPR Hot Seat 8: Scott Landes - History of Excavation Safety Conference and Origins of GPR Congress
Просмотров 2173 года назад
GPR Hot Seat 8: Scott Landes - History of Excavation Safety Conference and Origins of GPR Congress
Magnetometer and Metal Detectors in Locating | Subsurface Utility Mapping
Просмотров 8 тыс.3 года назад
Magnetometer and Metal Detectors in Locating | Subsurface Utility Mapping
Is that underground? Here is a useful way to find airwaves in gpr data | ground penetrating radar
Просмотров 1,4 тыс.4 года назад
Is that underground? Here is a useful way to find airwaves in gpr data | ground penetrating radar
How to determine if you have a round EM signal when locating utilities
Просмотров 1,6 тыс.4 года назад
How to determine if you have a round EM signal when locating utilities
Showing how magnets create electric currents | Ron Peterson at EM locator competency training
Просмотров 3754 года назад
Showing how magnets create electric currents | Ron Peterson at EM locator competency training
Rodriguez Kevin Lewis Patricia Jackson Susan
Rodriguez Gary Clark Susan Lewis Mark
Brown Nancy Martin Eric Johnson Anthony
Thank you for this video. If I need to simulate this, how can I know the central frequency, source-receiver distance, time window, etc? I am a beginner in this area. Thank you
@@arkjn20 great questions. The central frequency is difficult to really say with this system because it is a stepped frequency continuous wave. I look at it more like what's the frequency range for systems like this. For the rest you should be able to get it from the manual. Good luck! And let me know how it works out.
@@Learngpr Thank You for your reply!!
This video is so helpful for beginners. Thank you!!!
@@arkjn20 you are so welcome! Thanks for the comment!
Jerde Terrace
Excellent class . Thank you very much.
@@josecarlosrodriguesnunes5460 thank you!!
Thank you for this video...
@@sankarnair9821 you are so welcome! Thanks for watching!!
If there a cable that is scanned right next to a piece of rebar and the scanned pics up the rebate but not the PT . Who Is liable ?
Depends what the law is. And how you explain the limits to the customer.
Thanks for perfect and valuable instruction
@@bahadorafzal720 thanks so much! I appreciate you
Does it give information about the diameter of the rebar?
@@ortacalkan9069 It can but it's a process. We don't recommend it. Instead you could use a cover meter like a profoscope to estimate rebar aize
Hey Bigman, It's been 3 years pass I am still going learning new things, but als back some of your channel following your video. So please keep updating new things. Appreciated!
In your opinion, is this ds2000 more complete than a DSX?
@@kendecamp1 thanks for the question. I believe it is more complete from the hardware and mapping perspective, but the DSX is a more updated software with powerful visuals that can help new users. Hope the helps!
is it possible to create a DIY version for a project?
Merhaba profesör, videolarınızdan çokşey öğrendim. Bir sorum olacak korumalı antenler, ormanlık alanlarda çalışırken gürültüye neden olurmu?
Because reflections signals from trees
HOW DEEP does this devise reach?
It really depends on the size of the Target. A larger more conductive Target can be identified deeper, but a smaller less conductive Target will be hard to identify even shallow
what would you use this for??
Finding unknown pipes that don't have a direct connection point.
@@Learngpr oh ok thanks
Whats the height of the gs18 one a standard mounting? 1.3m?
Generally users choice
So if I have it in the holder and the pole was set at 2m so long as I specify that on the cs20 logger as 2m the ds2000 tablet will allow for that?
@@Canihelpyouz I believe that is correct because the ds2000 is only recording the nmea output from the GPS. So if you preprogram it with the GPS software and indicate how tall the pole is, it should send a message that places the coordinate and elevation back to the ground. But ask Leica to verify.
What would be the easiest means to find the undergound limits of an old unmarked dump/landfill?
Thanks for the question. Are you looking for the bottom of the landfill?
Hi Dan, We have been researching GPR for the last few weeks with a view to purchasing a vehicle mounted system. 88% of roads in Australia are unsealed dirt roads, most of the rest use ultra thin asphalt over approx 150mm to 300mm gravel then natural soils Additional information such as ground water table would be a possible advantage but less of a priority in our case. Air coupled antenna seem a safer option given the poor running surfaces we often encounter would destroy a ground coupled antenna. Do you have any recommendations on the best configurations of antenna ? I've read 2Ghz air coupled and 900 Mhz ground coupled is a good combination. Could we substitute the 900Mhz ground coupled for a air coupled antenna and mount it on the same arm.? Also is there a minimum distance the antennas should be located from a vehicle ?
What is that
Hello, are you acquainted with Radan 7 post processing software? i am trying to build a relation between gpr to density of soil by studying the velocity variation
Hello. I used it quite a bit many years ago. I haven't used as much lately.
Do you guys walk in alternate mode? Is only one way? I mean, seems to me that one one line is created and the plotted due the GPS data. How do you guys put the image in the google map? Do you use surfer and then export?
Thanks for the questions. We collected in one line, alternating directions. We plotted in surfer. Generally, I don't recommend collecting one long line but rather individual lines, stop/turn/start a new line.
@@Learngpr Excellent guys, I do appreciated the response. Your video was really open eyes for me, last question, how separate each line you usually walk to get the best results? Currently Im leaving 50cm separation between each line.
You have a good line spacing. It will depend on what you are looking for. 50 cm is closer than the video shows and its usually what we do for archaeology. But we have used larger spacing for utilities and soil mapping. Hope that helps!
@@Learngpr It does indeed. In arqueology, what are the mix sizes of your grids or areas you walked? I tested recently one of 35mtx26.50, I know the machine read well an structure that we know the location but just wanted to confirm if the area is too large or not to get more detail. Using the EM38-MKII, would say, latest version
i just bought that book . thank you so much
Thanks so much! I hope its helpful!!
Thank you for explaining these machines!!! Great video!!!
Much appreciated! Thank you
The green pulse, how do we know if it is a void from the wave
thank you so mcuh for sharing! is that possible to read if there are any moisture different inside the concrete?
Nice work
Nice work
Sir my gpr shows odometer error
Sorry to hear. Call the manufacturer
Love this. Even though it is raining you still go to the effort to do a video for us showing exactly what we need to see. Thanks Dan.
Always brother. Hope all is well!
The video was very informative it has great insight into the operation of the unit. Your technician great. Maybe also have someone else hold the camera it was moving around too much. I really had a hard time seeing the screen.
Thanks for the comment. We'll try to make additional videos soon
Sir your watsapp number please I have gpr1000 but not working properly
🎉
What is the max depth of the ds2000 in a stone ground?
Great video
Thanks so much! Glad it helped
Does gssI operate the same without the frequency wheel and what is the difference? I have Gssi antenna 200 but don't have frequency wheel with sir 3000 Thx
Yes. But you will have to base collection on time mode, but time window and samples will run the same. Thanks for the question!
How sign out the coffins ?
In my experience I believe it was internal antenna and soil. Because I have used it in different places where I can see my targets and the contrast was the same. I felt awkward in two different occasions where I couldn’t locate my targets. Thanks for your insight.
Thanks for sharing. Much appreciated!
When your scanning for power as well and it spikes downward what does that mean ?
Great video What’s the maximum depth it can scan??
Thanks for the comment and question. We have investigated to about 8ft below surface with the high frequency antenna and 18 ft below surface. These are in ideal conditions. Lower in poor conditions.
Isaac.
Which gpr unit scan utilities deeper than 15ft for the moderate soil type
mala units, low frequency
Hi. Thanks for the video. Does the presence/ absence of waterfowl in pipes affect detection?
Interesting question. Never thought about it. Probably not
Hello my friends I am working on GPR. I need help. I want to .dat to .dzt . Do you have any information? Thank u.
how about wet sand? low RDP?
Thanks! It is low, so gpr waves will often travel fast and for a long distance assuming it is dry. However, it could be difficult to identify disruption (such as from a trench), or low RDP targets such as small PVC filled with air.
How to leaen radar system calculations
Congratulations on the video! We use this ground-penetrating radar, and undoubtedly, it significantly streamlines our services.
Great to hear! Thanks for the comment
How many meters can you see the space under the ground and the object inside with metal separation?
Thanks. I'm not sure I understand the question
Hello, I live in Turkey. The underground imaging device named Mala GPR Ramak x3 is rented here. What is the difference between it and the one you produce?
Hi. We don't produce gpr. You can look at Leica Geosyatems website for more information on the ds2000 gpr.