Inspection Preparation, Setup and Operation
41
3.6
Plate scanning coverage
1.
The active scanning width of the FloormapX system is 300mm (12in). If required, scans can be
overlapped by a value of between 0mm to 100mm and set in the SIMS GO data acquisition
software. To calculate the number of scans required per plate, simply divide the plate width by
300mm minus the scan overlap. Round up to the nearest whole number.
Number of scans = plate width / (300 – scan overlap)
NOTE
The SIMS GO data acquisition software automatically calculates the number of scans
required per plate, based on the overlap selected in the software.
2.
Achieving full plate scanning coverage with the FloormapX scanner is not possible. Typically, on
rectangular plates non-inspected dead zone areas exist in each plate corner and around the
plate edge. For annular and sketch plates this non-inspected dead zone depends upon the size
and shape of the plate. Any obstructions on a plate also cause a reduction in the scan coverage
area for that plate.
3.
The data captured by the FloormapX relies upon the MFL and rear STARS sensor heads passing
the same point of the inspection surface, however due to a positional offset between these two
sensors head, at the start of a scan data captured begins at the MFL sensor head location, while
at the end of a scan data captured finishes at the rear STARS sensor head location. This results
in the following scan dead zone distances:
•
When the scanner is positioned with its back wheels against a weld, due to the gap between
the back wheels and MFL sensor head, a dead zone of 174mm (6.8in) exists at the start of
each scan.
•
When the scanner reaches the end of a plate and stops with its front wheels against the
weld, due to the gap between the front wheels and rear STARS sensor head, a dead zone of
259mm (10.1in) exists at the end of the scan.
•
When the scanner stops in front of a vertical obstruction with its front handle against it,
due to the gap between the front handle and rear STARS sensor head, a dead zone of
338mm (13.3in) exists at the end of the scan.
Figure 30: FloormapX sensor head mechanical constraints
4.
Due to the mechanical constraints, it is also not possible to get closer than 10mm to the lap weld
around the edge of the plate.
IMPORTANT
Ensure all non-scanned areas on a plate such as in each plate corner, around the plate edges
and around any obstructions are inspected by some other means such as Handscan mini MFL
scanner or UT inspection.
Содержание Floormap X
Страница 1: ...User s Manual Floormap X MFL Array Tank Floor Inspection Solution...
Страница 10: ...10 Chapter 1 Precautions and conventions...
Страница 16: ...General Precautions and Conventions 16 1 5 EU Declaration of Conformity...
Страница 19: ...19 Chapter 2 FloormapX System Overview...
Страница 35: ...35 Chapter 3 Inspection Preparation Setup and Operation...
Страница 43: ...43 Chapter 4 SIMS GO Data Acquisition Software...
Страница 69: ...69 Chapter 5 SIMS PRO...
Страница 98: ...98 Chapter 6 Troubleshooting and Maintenance...