The Floormap tank bottom inspection system combines two technologies: magnetic-flux leakage (MFL) and surface topology air-gap reluctance sensors (STARS). Featuring top and bottom plate corrosion views and capable of going as fast as 1 m/s (3.2 ft/s), Floormap improves the complete tank inspection process.


Available Models


Basic model with free-scan and auto-stop modes designed to rapidly screen storage tank bottoms. Free-scan mode displays live MFL views of the plate, color coded to show the magnitude of MFL signals or as simple black-and-white views only showing defects above a preset threshold. Auto-stop mode stops the scanner whenever defects are detected above a preset threshold.


Intermediate model including a mapping mode. Unlike Floormap-R, Floormap3Di-R captures, saves, and produces corrosion maps of tank bottoms. You can analyze the maps after each scan or perform post inspection in the dedicated SIMS reporting software, enabling tank engineers to compare and review historical data sets to determine optimal repair strategies.


Advanced model combining the benefits of Floormap-R and Floormap3DiM-R for a full-featured system offering maximum flexibility.

Two Technologies: MFL and STARS

Floormap combines two distinct technologies: MFL and STARS. MFL sensors are used to detect corrosion in the tank bottom, while STARS is a patented technology that helps determine whether corrosion is top side or bottom side. STARS can also be used to see the top surface, under a coating.


High Resolution

The high-resolution sensors of Floormap yield an excellent probability of detection (PoD) of defect as small as 2 mm (0.08 in) in diameter. When used with advanced signal processing and defect classification tools, corrosion detection and sizing capability are significantly improved over other systems. Results translate on screen into easy-to-interpret views of scanned areas, making it easier to understand the condition of tank bottoms.

Variable Speed

Floormaps are some of the fastest motor-driven scanners on the market. It is capable of variable speeds up to 1 m/s (3.2 ft/s), improving inspection efficiency and reducing the time spent in tanks.

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Data Acquisition

Floormap collects crucial inspection data very quickly, which is made possible by the high-power, rugged touch-screen computer and advanced software processing built in. Floormap produces detailed plan views of inspection areas, enabling operators to view scanned tracks and switch between multiple views, which are all designed to offer a more in-depth understanding of the tank bottoms without the need for complex signal interpretation, as seen with other NDT technologies. So, basically, operator sees an image used to simply determine the nature and geometry, the location and percentage loss of a defect. Having this information in an easy-to-understand format leads to faster and more reliable maintenance decisions.

Software Views

Floormap RAW MFL View

MFL View

Details all defects in the unfiltered RAW representation.

Floormap STARS View


Shows only top-side defects, even through coatings up to 6 mm (0.25 in).

Floormap MFLi view

MFLi High-Intensity View

Helps to classify corrosion.

These powerful tools can speed up the inspection process, reduce the amount of UT prove up, while increasing inspection confidence, which leads to better RBI calculations.


Operational principles

Magnetic-flux leakage (MFL) and surface topology air-gap reluctance sensors (STARS)

Detection method

256 Hall effect sensors, 64 channels

Top and bottom discrimination

Yes, using STARS technology

Test through coatings

Yes, if non magnetic


Variable, 500 mm/s to 1 m/s (19.7 in/s to 3.3 ft/s)

Maximum scan width

300 mm (12 in)

Maximum single scan length

32 m (105 ft)

Positional accuracy

± 0.04% (± 3 mm over 8 m) (± 3/32 in over 26 ft)

Dimensions (W × D × H)

510.0 × 690.0 × 980.5 mm (20.0 × 27.1 × 38.7 in)

Minimum man-way size

500 mm (20 in)

Transit case

Meets IATA requirements for transporting magnetisable material

Power requirements

1 × 12 V, 42 A/h, sealed, lead acid batteries


Supplied with two batteries and two chargers for continuous use


Up to 4 hours, typical

Operating temperature

–30–55 °C (–22–131 °F)

Relative humidity


Real-time analysis

Defect size, X/Y position, plate view, top/bottom, MFL, MFLi, STARS

SIMS reporting suite

  • Full version—three user licenses included
  • Read-only version—unlimited

Operating system requirements: Windows® XP, Windows Vista, Windows 7, Windows 8, or Windows 10


  • 5-day training and examination
  • 2-week level 1 and level 2 SNT courses