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Digital X-Ray and Assessment Development for Subsea Cable Jointing

The DXr1 is the successor to the Type 13 Mk III X-Ray Camera for submarine cable use and has the same rugged marine construction and radiation safety. As the camera is fully digital, system repair time is reduced by eliminating the film processing stage and allowing image assessment to commence as soon as the first image is available.

The digital images can be stored in a dedicated folder on the vessel server and therefore immediately available for the assessor to review them with special software, incorporating a range of drop-down tools such as wall-thickness and inclusion gauges. Image defects can be marked-up and stored together with comments. When all images have been assessed, a summary sheet is produced giving an overall result for the joint. The advanced software contains noise reduction features, brightness/contrast adjustment and identifies 16,000 levels of greyscale.

  • Windows Compatible
  • Rugged Marine Construction
  • Highest Radiography Safety
  • Power: 100-240v 5A 50/60 Hz
  • No Chemical Processing
  • No X-ray Films Required
  • No Lightbox or Graticules
  • No hard-copy film archiving
  • Higher image definition
  • System repair time reduced
  • Images can be emailed
  • Software Image Assessment
  • Touch-screen Control
  • Image Enhancement Software
DXr1 Key Features

DXR1 Technical Specification

Dimension/Mechanical
Height127cm
Width 90cm
Length110cm
Weight155kg
Manoeuvrability2 fixed castors, 2 free castors, Indicated lifting points, Lashing points provided
Power Requirements
Voltage100-240V AC @ 50/60Hz
Power1. 2kW maximum
Supported Cable Sizes (using appropriate collets)
Maximum90mm diameter
Supported Joint Sizes
Maximum101mm diameter
Dimension/Mechanical
TypeBespoke mono-block x-ray tube
Max tube voltage50kV
Max tube current2mA
CalibrationkV and mA settings optimized for polyethylene inspection
Detector
TechnologyCMOS
Resolution3072 x 1944
Bit depth14-bits per pixel (up to 16,383 grey scale levels)
Pixel Pinch75µm
Image area145mm x 230mm
Image quality CMOS
SensitivityBetter than 3%
Un-sharpness 0.16
Positioning
X-Ray sourceFully adjustable across width of cabinet, computer-controlled, motorized, 0.1mm accuracy
Imaging panelFully adjustable across width of cabinet, computer-controlled, motorized, 0.1mm accuracy
JointGuide-plate ensures user loads joint in correct position
Cabinet rotationManual operation with rotation lock and angle indication, Computer interface indicates required position, 0 to 165 degrees range of movement, Additional locking fastener at 0 degree position for storage and transportation
Imaging
Quality indicationBespoke IQI’s installed in cabinet appear on each image
Image correctionAutomatic dark, gain, and panel defect correction
Image enhancementMultiple-exposure averaging gives highquality low-noise images
Image sizeApproximately 13MB per image
Image dataEmbedded tags store detector position, joint serial numbers, job details, etc.
ArchivingImages sorted into folders to enable easy retrieval

User Interface
TypeTouch-screen, graphical user interface
User functionsStep-by-step step guidance through inspection process, on-screen review of previous images, Export image sets to USB drive
Supervisor functionsReview and edit joint and cable definitions, add new joint and cable definitions
Engineer functionsPerform full system set up and calibration
SecurityPIN protection option to prevent unauthorized access to settings
Safety Features
Visual warnings3-aspect coloured light signals (as per UK standards), high visibility markings highlight pinch-points around moving parts
Audible warningsIntegrated sounder, active during pre-inspection phase
Interlock sensorsCable located, correct collets fitted, door closed, access panel secured, light signals operational
Emergency stop‘Mushroom’ button on control panel suspends all x-ray and motor operations
Access controlKey switch to enable x-ray operation, lockable power switch
ShieldingRadiation levels less than 2.5µSvh-1 at 50mm from all surfaces of x-ray cabinet
Image Inspection
Full image inspection software package available
Advanced image enhancements
Defect and wall-thickness measurement tools
Image annotation
Report generation
Inspection software to be located on a PC elsewhere

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