Best Scanner For Caves?
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Re: Best Scanner For Caves?
Hello,
we have a good video from german first TV station about the use of Geoslam Scanner for cave scanning.
The user is one of the famous german researcher for underwater archology and research diver.
They research group dive with scanner in transport carry box into a underground gave. The versatility of the geoslam scanner is amazing.
https://www.laserscanning-europe.com/en ... umentation
the documentation is here and start by minute 30 arround. I am not sure, if it is work outside from germany.
https://www.zdf.de/dokumentation/terra- ... r-100.html
...Eric
we have a good video from german first TV station about the use of Geoslam Scanner for cave scanning.
The user is one of the famous german researcher for underwater archology and research diver.
They research group dive with scanner in transport carry box into a underground gave. The versatility of the geoslam scanner is amazing.
https://www.laserscanning-europe.com/en ... umentation
the documentation is here and start by minute 30 arround. I am not sure, if it is work outside from germany.
https://www.zdf.de/dokumentation/terra- ... r-100.html
...Eric
Eric Bergholz
CEO
Laserscanning Europe GmbH
http://www.laserscanning-europe.com
http://www.shop.laserscanning-europe.com
http://www.laserscanning-america.com
Germany - America
CEO
Laserscanning Europe GmbH
http://www.laserscanning-europe.com
http://www.shop.laserscanning-europe.com
http://www.laserscanning-america.com
Germany - America
- smacl
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Re: Best Scanner For Caves?
I see another post on the site is promoting the GeoSlam coupled with an Elios drone, see here. Could be a potential option where there is restricted access.
- smacl
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Re: Best Scanner For Caves?
Looking at some promotion of this over on LinkedIn, pictures look nice but very difficult to get a feel for the quality without actually analysing the data in detail from a client job. Have you used it yourself yet Sim?sim.herrod wrote: ↑Tue May 24, 2022 9:19 am Have a look at the Emesent Hovermap.
We were very impressed with the quality and accuracy of the data.
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Re: Best Scanner For Caves?
We used one of the small Faro scanners on a real project, cloud alignment works well as there is variation in the cave passages and the scanners are light. Shot in targets with a total station also.
When the Zeb Revo was still fairly new, we did experiments in Exeter's underground passages. We did all sorts of testing, using there and back loops vs single runs etc...Sometimes you get decent results, but we found that often, there was 'slippage' or just badly registered data. It was much more reliable on building surveys. But this environment was really tough, with very narrow passages and parts were smooth tunnel.
https://www.youtube.com/watch?v=Yg13fLP84T8&t=45s
youtu.be/Yg13fLP84T8
When the Zeb Revo was still fairly new, we did experiments in Exeter's underground passages. We did all sorts of testing, using there and back loops vs single runs etc...Sometimes you get decent results, but we found that often, there was 'slippage' or just badly registered data. It was much more reliable on building surveys. But this environment was really tough, with very narrow passages and parts were smooth tunnel.
https://www.youtube.com/watch?v=Yg13fLP84T8&t=45s
youtu.be/Yg13fLP84T8
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- Justin Richards
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Re: Best Scanner For Caves?
I seen that on the last webinar, I did like the versatility of it.sim.herrod wrote: ↑Tue May 24, 2022 9:19 am Have a look at the Emesent Hovermap.
We were very impressed with the quality and accuracy of the data.
Do you think it could produce repeatable results in a tight space?
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Re: Best Scanner For Caves?
As I remember, the GeoSLAM scanners were originally invented for that purpose, to scan a cave in Australia. You can find nice videos of that early versions when searching "zebedee csiro" in youtube. For example this one:
https://www.youtube.com/watch?v=jt38pF_TJvY
The results already looked impressive in 2014. And it improved.
https://www.youtube.com/watch?v=jt38pF_TJvY
The results already looked impressive in 2014. And it improved.
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Re: Best Scanner For Caves?
You say the purpose is to compare the scans, so you reasonably have to measure a deformation. I think the key point is the minimum difference you have to measure.Justin Richards wrote: ↑Mon May 23, 2022 3:31 pm I need to scan a cave with floor to ceiling heights ranging from one to four feet (30-120cm). There is water on the bottom of some of it so its just going to be the ceiling in places. The purpose of the scan is to compare before and after a nearby road construction project.
I was looking at the BLK2GO and the CaveTron. Does anyone have any other recommendations?
https://shop.leica-geosystems.com/leica-blk/blk2go
https://caveatron.com/
Do you need an array of control points of aligning the scan sets is enough? Depending on the minimum deviation you are supposed to measure everything changes, both controls and hardware.
Massimo
ing. Massimo De Marchi - +39 347 32 17 049 - www.studiodemarchi.net
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Re: Best Scanner For Caves?
Right now we don't have predetermined allowance.max72 wrote: ↑Wed May 25, 2022 8:43 pm
You say the purpose is to compare the scans, so you reasonably have to measure a deformation. I think the key point is the minimum difference you have to measure.
Do you need an array of control points of aligning the scan sets is enough? Depending on the minimum deviation you are supposed to measure everything changes, both controls and hardware.
Massimo
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Re: Best Scanner For Caves?
Hi,
Scanned lots of caves with Geoslam Zeb, it's good but expect to have failures from time to time. We have noticed a habit of it stretching narrow areas.
Scanned lots of caves with Geoslam Zeb, it's good but expect to have failures from time to time. We have noticed a habit of it stretching narrow areas.