Silverwing is now part of Eddyfi Technologies

Floormap3Di-R High Speed MFL Tank Bottom Inspection Scanner

  • Variable speed up to 1 m/s
  • Full tank floor mapping
  • Top & bottom defect discrimination
  • Enhanced probability of corrosion detection

The Floormap3Di-R is fastest tank bottom inspection system developed by Silverwing, with scanning speeds of up to 1 m/s which is twice the speed of the previous model. The Floormap will improve your inspection efficiency whilst improving accuracy and data quality.

The Floormap combines two distinct technologies, MFL and STARS. The introduction of STARS (Surface topology air-gap reluctance sensors) enables the scanner to determine whether there is corrosion top side, bottom side or below the surface coating.

Improved signal to noise ratio combined with STARS and MFL ensures a more accurate and efficient inspection of coated and thicker plates.


Data Capture and Accuracy

Unlike other manual “stop on defect” systems all the data is captured and stored. This data retention enables tank engineers to compare and review historically pertinent data sets to determine the optimum repair strategy.

The high resolution sensor heads provide excellent probability of detection down to indications that measure 2mm in diameter. This coupled with advanced signal processing and defect classification tools significantly improves the corrosion detection and sizing capability when compared with previous generation systems.

Key Benefits:
  • Variable from 0.5m/s to 1 m/s
  • Advanced defect sizing and classification tools
  • Auditable inspection data
  • Full tank floor mapping
  • Full data recording
  • High probability of detection
  • Inspection confidence
  • Field proven durability & reliability
  • 20 years MFL development in over 60 global locations
Key Features:
  • Motor driven
  • 256 individual sensors (64 channels)
  • High Resolution 4.6 x 2 mm
  • Advanced signal processing and defect classification tools
  • Through coating inspection up to 6 mm including FRP, GRP and SS
  • USB based, simplified data transfer
  • Digital calibration for different plate thicknesses
  • Battery powered, no trailing cables
  • Touch screen computer providing immediate plate view for defect assessment

Calibration Confidence

The Floormap system incorporates a novel calibration routine that creates separate calibration curves for top side and bottom side corrosion.

During the inspection, the software first identifies if a signal is generated from the top side or bottom side, and then automatically applies the most relevant calibration curve for more accurate defect depth estimates.

These calibration curves are linked to the inspection data and reproduced in the report along with the scanner serial number to provide an auditable inspection data archive which increases inspection confidence for both inspection companies and asset owners.

Floormap Calibration Curve

Corroded Plate Sample
Extensive top side corrosion pitting.

Plate

STARS Raw Data View
View of STARS sensor output. Accurate representation of top surface profile.

Stars

MFLi View
'Intensity' view of MFL data. Used to classify and evaluate defects.

MFLi

Calibrated MFL View
View of processed and filtered MFL data, colour coded to represent estimated percentage loss.

Calibrated

Calibrated MFL View

The Floormap system produces a detailed geometrical view of the inspected area. This view immediately provides the operator with an understanding of the tank bottom – basically the operator can determine the nature and geometry of the indication meaning the following questions can be answered; is the indication due to a weldment or corrosion? Is the indication wide or deep?

By answering these questions important decisions can be made and time required for prove up reduced.

Calibrated MFL View

MFLi View

The Floormap introduces a new high contrast plate view based on the intensity of the MFL signal response.

The MFLi defect map uses multiple colour palettes to highlight areas of corrosion, reduce the effect of spurious indications and can be used to classify defect type.

This powerful detection and classification tool can reveal the presence of small diameter pitting, SRB attack, erosion patterns and other features that require further verification.

MFLi View

Surface profile with STARS technology

The innovative STARS technology adds an additional 64 channel sensor array to detect variations in magnetic field strength caused by top side defects. STARS and MFL signals are combined and processed within the software to distinguish top side defects from bottom side defects.

The STARS view provides a picture of the top surface even through coatings up to 6 mm (1/4”).

Visually, seeing an image of the top surface dramatically reduces errors as no signal interpretation is required.

STARS View

MFL RAW View

The Floormap has been made possible by the industry’s highest resolution sensor array and advanced signal processing capabilities.

These high resolution sensors are essential in providing the detailed MFL raw view.

The MFL raw view is an unfiltered depiction of all the data collected, both top side and bottom side. The MFL raw view allows the operator to analyse and verify the inspection data, this process will increase inspection efficiency and confidence and reduce the likelihood of MFL inspection errors.

STARS View

Dynamic Cursor

The unique Dynamic Cursor (DC) sizing and verification tool assists in identifying difficult to size defects such as deep pits, bacterial attack and through holes.

Dynamic Cursor is based on the expected volume loss and diameter of ‘known depth’ reference defects. The screen cursor forms a ring when moved over an indication which dynamically changes to show the expected diameter of the defect.

By using the DC, prove-up inspections such as pit gauging and ultrasonic measurements can be targeted towards the most relevant defects, reducing overall inspection time and improving inspection accuracy.

At a glance, the operator is able to determine which indications are likely to have been sized within expected accuracy levels, and which defects may have been oversized or undersized due to volumes being significantly different to the reference defects.

Dynamic Cursor view

Corrosion Defect Presentation

New signal processing algorithms developed for the Floormap introduce greater accuracy for defect area presentation, and automatically separate and filter ‘noise’ indications from the displayed plate view.

Providing a detailed visual representation of the tank bottom means less ‘prove up’ is required, inspection efficiency is increased and overall inspection quality is improved.

Corrosion Defect Presentation

M Version

The Floormap3DiM R model adds free scan and a stop on defect mode, which bring together the advanced defect detection capability of our Floormap systems with simple to use operation of the MFLi3000.

The Floormap3DiM has a unique Real Time Scan view that displays the MFL signal response whilst scanning, and the latest MFLi defect analysis view for evaluation at the end of each scan. An innovative reverse drive mode allows the technician to retrace the scan, easily locating areas of interest and significantly reducing prove up time. For more information on the M features please the MFLi3000 page by clicking here.

SIMS Reporting Software

Silverwing Inspection Mapping Software (SIMS) reporting suite provides the most powerful and efficient means to create high quality reports on tank condition, and archiving of inspection results for traceability.

SIMS imports data from the Floormap and automatically positions each of the separate plate files together to produce a CAD drawing of the entire tank floor showing the location and severity of all corrosion over 20% loss or specified value with 10% colour banding.

Corrosion can be displayed as individual coloured pixels to provide precise information on the condition of specific areas of the tank floor. Alternatively the plates can be coloured according to the maximum corrosion detected on each track to provide an overview of the general condition of the tank.

A unique feature of SIMS is the ability to add results from other inspections carried out on the tank floor. Results from visual, ultrasonic, Handscan, MFL and even weld inspections can be added to the SIMS report to produce a complete ‘fingerprint’ of the tank floor condition.

SIMS Key Features:
  • Displays complete tank floor inspection data
  • Automatic CAD layout when used with Floormap systems
  • CAD layout tool for manual recording
  • Measurement tools for sizing areas of corrosion
  • Patch plate design tool (includes API standardised plates)
  • Incorporate Manual MFL, Vacuum box, MT, UT test results as well as visual observations
  • Top/Bottom defect views
  • Comparison of historic inspections
  • UT prove up lists and data recording
  • Free viewer for report distribution
Technical Specification

Technical Specification
Principle of operation:
Magnetic Flux Leakage & Magnetic Field Reluctance (STARS)
Method of detection:
256 Hall Effect sensors, 64 channels
Top and bottom discrimination:
Yes, using STARS technology
Test through coatings:
Yes, if non-magnetic
Speed:
Variable from 0.5m/s (19.7" / second) to 1m/s (39.4" / second)
Scan width:
300 mm (12")
Maximum single scan length:
32 metres (1,260")
Scan coverage:
9 m² / minute (97 ft² / minute) to 18 m² / minute (194 ft² / minute)
Positional accuracy:
± 0.04% (± 3 mm over 8 metres) (± 3/32" over 315")
Method of propulsion:
DC motor, anti-static drive wheels
Rollers:
Heavy duty, multi compound rollers
Real time analysis:
Defect size, x / y position, plate view, top/bottom, MFL, MFLi, STARS
Dimensions, Power & Temperature
Dimensions:
Height: 980.5 mm (38.7") - Width: 510 mm (20") - Length: 690 mm (27.1")
Weight:
57.5 kg (126 lbs)
Minimum man-way size:
500 mm
Transit case:
Meets IATA requirements for transporting magnetisable material
Power requirements:
1 x 12V, 25 amp-hour sealed lead acid batteries
Batteries:
Supplied with 2 batteries and 2 chargers for continuous use
Typical battery operational time:
Up to 4 hours
Operating temperature:
-30°C to 55°C (-22°F to 131°F)
Storage temperature:
-35°C to 75°C (-31°F to 167°F)
Humidity:
10 - 95% RH
Detection Capabilities
Minimum defect detection sensitivity:
2 mm (0.08") diameter pipe type 50% deep
Minimum defect sizing sensitivity:
20% material loss (ball type) under floor and top surface
Maximum coating thickness for accurate sizing:
6 mm (1/4") coating on 6 mm (1/4") plate
accurate sizing:
5 mm (3/16") coating on 8 mm (5/16") plate
3 mm (3/32") coating on 10 mm (3/8") plate
1 mm (5/64") coating on 12 mm (15/32") plate
Supported plate types:
Rectangle, annular and sketch
Scan overlap:
0 to 250 mm (9.8") with transparent tracks to show all defects
Un-scanned area:
10 mm (3/8") from plate weld, 160 x 160 mm (6.3 x 6.3") corner dead zone
Options
SIMS Reporting Suite:
Full version – 3 user license included.
Read only version – unlimited
Operating system requirement – Windows XP, Vista, 7 or 8
Training:
4 days Silverwing based training and examination.
Pre-configured Reporting Laptop:
Windows and Floormap3D reporting suite
Additional Software Licenses:
Bundles of 3 additional user licenses
Calibration Plates
Standard Reference Plates:
6 mm – Part No: FMCP30
8 mm – Part No: FMCP28
10 mm – Part No: FMCP29
12 mm – Part No: FMCP31

Floormap3Di-R - Advanced Tank Bottom Inspection

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