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3 жыл бұрын
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@kunalsinghgehlot4116 16 күн бұрын
Can this thing detect subsurface silica deposits and water veins?
@Learngpr 14 күн бұрын
@@kunalsinghgehlot4116 possibly
@kunalsinghgehlot4116 14 күн бұрын
@Learngpr if it is then how? Plz hel
@kunalsinghgehlot4116 14 күн бұрын
If it is then how? Plz help
@wisamtfayli4415 19 күн бұрын
hi professor, it's crazy how good and accurate is this video. I'm currently taking a Geophisics exam, with a big focus on application to monitor landslides, they explained us the GPR method very quickly to be able to do some measurement on the field. The problem is that they had to cut half of the program to be able to finish on time, so i had some gap in the theory of GPR. Thanks a lot for the perfect explanation
@billgalinos3465 29 күн бұрын
Hi! bravo great job!! How can i buy Leica DS2000 .i live in outh Europe.Thanks
@АлександрМельников-в8л Ай бұрын
Not interesting system GPR. Bed resolution, so many mistakes
@АлександрМельников-в8л Ай бұрын
Ужасный лектор, много неточностей. Ну например Длинные волны (по его мнению) с 12.5 МГц- это вообще короткие волны. Работа зондирования провдяться и ниже 1 МГц. Учи матчасть неуч. 800 МГц уже далеко не длинные волны, ну никак. Ты же только что давал тадлицу с частотмаи, где VHF и UHF- это короткие и ультракороткие волны....Вообще зачем нужна ваша инвалидная коляска по полю...есть много более эффективных способов... Применение карйне скромное: вот на этой глубине лежит что-то. Столько погрешностей и неопределенностей. много исключений и неточностей в измерениях. Система полный отстой!
@Osmanbay-l6i Ай бұрын
Hi sir .... i am osman and i have some issue with this device please tell me how can i get accurate coordinates for mark the utility and how i save the exact location coordinates for autocade drawing if send any proposals to contractor
@Kapilthakur_bulandshahr Ай бұрын
Sir what is the propagation in ids cthrue in asphalt and concrete road plese reply
@Learngpr Ай бұрын
@@Kapilthakur_bulandshahr great question. The propagation velocity has nothing to do with the system, it has everything to do with the material itself. We see asphalt with velocity of between .1 m/ns to .15 m/ns depending on the material and environmental condition. Possibly a little faster in certain circumstances.
@marthareyes4837 Ай бұрын
Would this machine check if anything is buried underground? My grandparents always thought there was treasure buried underground.
@Learngpr Ай бұрын
@@marthareyes4837 it's possible. This is the primary tool and others like it that are used to locate objects buried underground.
@MelissaWilliams-m4r 2 ай бұрын
Garcia Cynthia Brown Kenneth Harris Joseph
@MelissaWilliams-m4r 2 ай бұрын
Hernandez Melissa Anderson Brian Lewis Joseph
@arkjn20 2 ай бұрын
The dielectric constant we mark is approximate value for the medium or the utility ?
@Learngpr 2 ай бұрын
@@arkjn20 the medium
@denysrudenko752 2 ай бұрын
How good is this GPR? Looking to buy something similar for work in Nothern California
@Learngpr 2 ай бұрын
@@denysrudenko752 it's a rock solid gpr with 2 antenna and easy integration with GPS. I'm still a big fan after many years. If you need a quote you can reach out to [email protected]
@bobbyflay2572 2 ай бұрын
What a huge help. I was assuming "low" meant low and "high meant high and had my values backwards. This helped me clean my processed image up a lot. Thank you !
@Learngpr 2 ай бұрын
@@bobbyflay2572 my pleasure!! Good luck!!
@alanmcrae8594 2 ай бұрын
Thanks for demonstrating & explaining. I want to make a magnetic locator detection target to put on the end of a long plumber's snake that I can run through some plastic landscaping drainage pipe so I can find both where it is clogged and, eventually, where the other end is buried. I'll be using a CST/berger Magna-Trak 200 magnetic locator, and I think I could follow the location of the locator target as my assistant feeds the plumber's snake into the plastic drainpipe. Which would give me a more definitive detection as the layer of dirt & rock over the drainpipe gets thicker: a strong magnet or a ferrous iron target?
@Learngpr 2 ай бұрын
@@alanmcrae8594 thanks for watching. You can do it usually with the sonde on the camera head instead of putting the locator on it. Does your camera have a sonde?
@alanmcrae8594 2 ай бұрын
@@Learngpr I'm talking about a regular plumbers snake - basically a long, stiff but flexible , metal spring used to clear clogs in a residential home's drain pipe. Doesn't have a camera on it nor a sonde.
@Learngpr 2 ай бұрын
@@alanmcrae8594 got it. They do sell throw away sounds that could go on the snake. Their only a few bucks. Might be worth looking into
@calvineshorter7854 2 ай бұрын
Harris Jeffrey Hall Charles White Barbara
@Learngpr 2 ай бұрын
@@calvineshorter7854 thanks for sharing!
@calvineshorter7854 2 ай бұрын
Brown Michelle Johnson Christopher Walker Scott
@aissachibane518 2 ай бұрын
What IS thé max depht it Can detect
@Learngpr 2 ай бұрын
@@aissachibane518 thanks for the question. My team has found that the 250 MHz antenna can go deeper than 20 ft in ideal conditions. The 700 MHz can go deeper than 7ft in ideal conditions. Hope this helps.
@LeacockFelix-h2y 3 ай бұрын
Lawrence Forest
@IsaacJafaraghaei 3 ай бұрын
خدا ک ، ی ، ر رو به خر میده کو ، ص هم به کولی این دستگاه هم به شما داده که اصلا نمی فهمین به چه درد می خوره
@arkjn20 3 ай бұрын
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
@Learngpr 3 ай бұрын
@@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.
@arkjn20 3 ай бұрын
@@Learngpr Thank You for your reply!!
@arkjn20 3 ай бұрын
This video is so helpful for beginners. Thank you!!!
@Learngpr 3 ай бұрын
@@arkjn20 you are so welcome! Thanks for the comment!
@JenniferMartinez-z9v 3 ай бұрын
Jerde Terrace
@josecarlosrodriguesnunes5460 3 ай бұрын
Excellent class . Thank you very much.
@Learngpr 3 ай бұрын
@@josecarlosrodriguesnunes5460 thank you!!
@sankarnair9821 3 ай бұрын
Thank you for this video...
@Learngpr 3 ай бұрын
@@sankarnair9821 you are so welcome! Thanks for watching!!
@PHATBASSASSASSIN 4 ай бұрын
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 ?
@Learngpr 3 ай бұрын
Depends what the law is. And how you explain the limits to the customer.
@bahadorafzal720 4 ай бұрын
Thanks for perfect and valuable instruction
@Learngpr 4 ай бұрын
@@bahadorafzal720 thanks so much! I appreciate you
@ortacalkan9069 4 ай бұрын
Does it give information about the diameter of the rebar?
@Learngpr 4 ай бұрын
@@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
@BGIS2000 4 ай бұрын
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!
@Learngpr 2 ай бұрын
@@BGIS2000 thanks so much! I'll try to take some time to make new videos soon.
@kendecamp1 4 ай бұрын
In your opinion, is this ds2000 more complete than a DSX?
@Learngpr 4 ай бұрын
@@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!
@benitjojo6453 4 ай бұрын
is it possible to create a DIY version for a project?
@muzaffercici-kl1bs 5 ай бұрын
Merhaba profesör, videolarınızdan çokşey öğrendim. Bir sorum olacak korumalı antenler, ormanlık alanlarda çalışırken gürültüye neden olurmu?
@yunus23196 4 ай бұрын
Because reflections signals from trees
@Honor86-d1l 5 ай бұрын
HOW DEEP does this devise reach?
@Learngpr 5 ай бұрын
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
@snapnpiksallthetime7672 5 ай бұрын
what would you use this for??
@Learngpr 5 ай бұрын
Finding unknown pipes that don't have a direct connection point.
@snapnpiksallthetime7672 5 ай бұрын
@@Learngpr oh ok thanks
@Canihelpyouz 5 ай бұрын
Whats the height of the gs18 one a standard mounting? 1.3m?
@Learngpr 5 ай бұрын
Generally users choice
@Canihelpyouz 5 ай бұрын
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?
@Learngpr 5 ай бұрын
@@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.
@sierrafoxtrotgolf3638 5 ай бұрын
What would be the easiest means to find the undergound limits of an old unmarked dump/landfill?
@Learngpr 5 ай бұрын
Thanks for the question. Are you looking for the bottom of the landfill?
@bettaroads 5 ай бұрын
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 ?
@PHATBASSASSASSIN 5 ай бұрын
What is that
@hamzehalbakri6517 6 ай бұрын
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
@Learngpr 6 ай бұрын
Hello. I used it quite a bit many years ago. I haven't used as much lately.
@singleroot123 6 ай бұрын
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?
@Learngpr 6 ай бұрын
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.
@singleroot123 6 ай бұрын
@@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.
@Learngpr 6 ай бұрын
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!
@singleroot123 6 ай бұрын
@@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
@yunus23196 6 ай бұрын
i just bought that book . thank you so much
@Learngpr 6 ай бұрын
Thanks so much! I hope its helpful!!
@valeenorris921 6 ай бұрын
Thank you for explaining these machines!!! Great video!!!
@Learngpr 6 ай бұрын
Much appreciated! Thank you
@JohnIgnacio-mp6lg 6 ай бұрын
The green pulse, how do we know if it is a void from the wave
@lmk9928 6 ай бұрын
thank you so mcuh for sharing! is that possible to read if there are any moisture different inside the concrete?
@maliksajid5492 6 ай бұрын
Nice work
@maliksajid5492 6 ай бұрын
Nice work
@WasimUllah-vm3tg 6 ай бұрын
Sir my gpr shows odometer error
@Learngpr 6 ай бұрын
Sorry to hear. Call the manufacturer
@GeelongCableLocations 6 ай бұрын
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.
@Learngpr 6 ай бұрын
Always brother. Hope all is well!
@oan3055 6 ай бұрын
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.
@Learngpr 6 ай бұрын
Thanks for the comment. We'll try to make additional videos soon
@WasimUllah-vm3tg 7 ай бұрын
Sir your watsapp number please I have gpr1000 but not working properly
@jdbdbdbdbdbhxhdhdhdh8679 7 ай бұрын
🎉