FloormapVS2
Advanced MFL tank inspection using the best selling Floormap VS2 developed by Silverwing (UK) Ltd.
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The FloormapVS2 is latest version of the best selling MFL floor scanner and now comes with up-graded magnets to improve defect detectability and sizing on thicker materials, faster data capture with a custom designed micro controller and all new software. The VS2 contains significant improvements in terms of defect positioning, electronic data processing and software manipulation. A new High Specification encoder system has been developed which is electronically calibrated to each individual scanner eliminating errors caused by component tolerances. The new encoder now gives accuracy to within 3 mm on an 8 metre track length and providing it is calibrated on an annual basis will not be effected by normal wear and tear. The ruggedised on-board computer uses touch screen technology for ease of use within the hostile storage tank environment. The custom designed data acquisition software not only captures all the MFL signals but analyses and displays the location and severity of the corrosion in real time. • Automatic CAD drawing • Patch plate design feature • Ruggedised touch screen computer • Real time data acquisition and analysis • Hard copy and electronic report functions • Combined defect profiling and amplitude analysis • Add data from Visual, UT, Vac box and MPI Inspection
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Technical and Performance Specification - Patent No 5,619,136
| Principle of operation | Magnetic Flux Leakage |
| Detection | 32 off Hall Effect sensors |
| Scan width | 250mm |
| Maximum single scan length | 15 metres |
| Method of propulsion | DC motor |
| Speed | 0.5m/ sec |
| Thickness range | Maximum 12.5mm (automated sizing mode) Maximum 20mm (detection mode only) |
| Test through coatings | Yes if non magnetic |
| Maximum coating thickness | 6mm |
| Sensitivity | adjustable |
| Max sensitivity | 20% underfloor corrosion |
| Autostop | Yes |
| Data storage | Yes |
| Real time analysis | Yes |
| Power requirements | 12v battery operation - 2 x 28 AHr batteries and 1 intelligent charger allow continuous working |
| Transit case | Meets IATA requirements for transporting magnetizable material |
| Operating weight | 54 kg |
The off – line reporting software automatically produces a CAD drawing of the tank floor with the defects being positioned to within 30mm accuracy. All captured data, over 20% loss of the nominal plate thickness, is re-analysed to identify the defect profile and separate the corrosion into 1 of 3 classes. Different sizing algorithms are applied to each class of corrosion ensuring enhanced defect sizing even on badly corroded floors where small diameter deep pits may otherwise have been undersized. Additional data from visual, ultrasonic, vacuum box and magnetic particle inspection can be added to the report generating a full fingerprint of the tank floor including the annular plates. An innovative feature of the software allows subsequent inspection data to be overlaid and corrosion growth identified. These features coupled together with a patch plate design function and full statistics package give the tankage engineer a powerful, cost effective tool with which to carry out trending and asset life projections. |
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FloormapVS2 Analysis Suite System Requirements Reporting Software System Requirements Windows XP PC PIII 2GHz or better processor 512MB RAM or better 40GB Hard drive with space for installation CD Rom SVGA 800 x 600 minimum resolution display Mouse & Keyboard Microsoft .Net Framework v1.1 (supplied) Microsoft DirectX v9 (supplied) |
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