Laser Scanning of Storage Tanks

[@lancewatson01]

Hi if possible could could I show this video in a presentation I'm doing in Orlando?

[@Chris_Willows]

Nice job...The one thing I would do differently is the verticality check. Simply fitting a cylinder to the whole dataset and measuring the difference at the origin bottom v top is not an accurate representation of how off vertical it is as it naturally best fits the cylinder to all the data in between the top and bottom. It would be more accurate to fit 2 separate cylinders using a thing slice of data at the top and bottom and compare these values in X & Y......

[@MerrettVid]

+christopher byrne Thanks, I agree with your comment regarding the verticality, which we actually measure in two distinct ways. One is by fitting the cylinder - think of it as an 'overall measure' and one by creating many horizontal sections/slices. Some of the extra analysis is missing or simplified for an easy to understand video.

[@alienatom4079]

yeah, me too.... I have always been curious to what my city may be up too....

[@hamdihamdi3000]

Thanks for this video, I need to know does this laser scanner work for the tank calibration ?

[@kolachepapi4621]

Do you calibrate tanks?

[@vikramsadco]

Hello James, where can I get more information about laser tank scanning services? I am looking for a solution to scan underground storage tanks. Thanks & appreciate your reply.

[@JamesRye]

Hi Vikram, I work for a company called Merrett Survey Limited, we work all over the world laser scanning storage tanks. Please visit our website at www.merrettsurvey.com for more information. Alternatively, contact me directly via email: [e-mail] plus.google.com/collection/s4e7o

[@vikramsadco]

Dear James, Many thanks for the info. Appreciate it! Regards, Vik

[@gregorjev]

Great solution. How did you make the surface unroll? Thanks.

[@MerrettVid]

+Gregor Novaković Thanks, we developed our own in-house software to do this. Here's a link to the math: www.mathopenref.com/cylinderarea.html

[@gregorjev]

+MerrettVid Thank you very much.

[@jaholongsamosir2360]

how much the equipment price

[@merrettsurveylimited3836]

It depends on what scanner you use to measure the tanks. The video is quite a few years old now and the Leica C10 has been replaced with a Leica P40. Other scanners are available and prices vary from £30,000 to £100,000+ for high accuracy laser scanners.