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ISO9001:2008
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RMS2 - High speed, Automated Ultrasonic C-scan corrosion mapping system

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The RMS2 (Rapid Motion Scanner) is a high speed automated ultrasonic C-Scan corrosion mapping system which can
is capable of scanning critical pipework with a minimum diameter of 6 inch (152mm) and larger.
The RMS2 corrosion mapping system is
designed for rapid, large scale inspection of ferrous structures such as
storage tanks, pipe-work, pressure vessels, risers and other critical
equipment.
The RMS2 key hardware features:
- Scanning grid adjustable from 0.5 mm to 150 mm in X and Y
- 730 mm/s scanning speed
- Integrated ultrasonic pulser receiver for data acquisition
- Integrated camera system for visual inspection and collision avoidance
- High performance tractor units with 100kg pull off force for under pipe operation
- Overall height of 197 mm from inspection surface
- Fully gimballed probe holder capable of riding over weld cap and lap joints
- Joystick control for fast positioning
- 30 m umbilical for long scans
- High temperature version for 170°C operation with water coupling
- Modular build allowing heads to be changed easily
The RMS2 corrosion mapping system is extremely flexible with a range of 3 optional crawler types allowing the customer to customise the system to meet their inspection requirements.
The RMS2-600 is designed to maximise scanning rates on large areas such as tank shells, pressure vessels and other large structures,
the RMS2-450 is designed for the inspection of smaller diameter pipe work from 152mm (6 inches) and above,
RMS2-300 is designed as a general purpose scanner for inspecting areas with obstacles such as nozzles that would prevent access using the wider scanning heads.
Ultrasonic data is recorded from a single crystal immersion transducer.
A full range of transducer types are available to suit specific inspection requirements.
The transducer is fitted to a scanning rail fixed between the two tractor units and moves in both directions along the scanning rail during a scan.
The transducer is mounted in a fully gimballed probe holder, which ensures it remains perpendicular to the surface. A stainless steel wear plate prevents transducer damage when scanning over rough surfaces.
The two low profile tractor units utilise high torque stepper motors combined with magnetic drive wheels. The combined magnetic pull is in excess of 100Kg, which is 5 times the unit weight of 20Kg, ensuring that it remains attached to the structure.
The RMS2 scanning head can be controlled with either a joystick, or from steering controls built into the RMS software.
A scanner mounted video camera is displayed within the RMS2
software and can be used to position the crawler when the operator view
is obstructed.
A 15 metre combination umbilical cable is used for ultrasonic data transfer, control instructions and couplant supply. For taller structures or large diameter vessels there is an option to purchase a 30m umbilical cable.
Each RMS system is supplied complete with a pre-configured high specification laptop computer running a Microsoft windows operating system.
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RMS2 600 Large Area Scanner |
RMS2 450 Pipework and Vessel Scanner |
RMS2 300 General Purpose Scanner |
- 600mm scan width
- Circumferential scanning around large pipes / vessels
- Longitudinal scanning
- Minimum Diameter 5.5 metres
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- 450mm scan width
- Designed for circumferential scans around smaller pipe-work / vessels
- Capable of longitudinal scans on large diameter structures or flat plate
- Circumferential scanning
- Minimum diameter 152mm (6 inches)
- Longitudinal scanning
- Flat plate / large diameter structures
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- 300mm scan width
- Circumferential scanning around pipes / vessels
- Longitudinal scanning
- Minimum Diameter 1.5 metres
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| RMS2 600 - Scanning Speeds |
RMS2 450 - Scanning Speeds |
RMS2 300 - Scanning Speeds |
| Area |
Resolution |
Time (min) |
| 1000 x 600 mm |
10 x 10 mm |
2.35 |
| 1000 x 600 mm |
5 x 5 mm |
5.09 |
| 1000 x 600 mm |
2 x 2 mm |
13 |
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| Area |
Resolution |
Time (min) |
| 1000 x 450 mm |
10 x 10 mm |
2.12 |
| 1000 x 450 mm |
5 x 5 mm |
4.30 |
| 1000 x 450 mm |
2 x 2 mm |
11 |
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| Area |
Resolution |
Time (min) |
| 1000 x 300 mm |
10 x 10 mm |
1.50 |
| 1000 x 300 mm |
5 x 5 mm |
3.39 |
| 1000 x 300 mm |
2 x 2 mm |
9.08 |
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Data Acquisition Software
Data Acquisition Key Features
- Seamlessly integrated scanner control, data acquisition, analysis and reporting tools
- User friendly, modular interface
- Quickly hide infrequently used controls
- Restore hidden controls with one click
- Save favourite screen layouts
- Real-time A-scan and C-Scan display during scan
- Multiple A-scan gates - Several gate types:
- Peak
- Flank
- Fixed position (Can be used for top surface corrosion)
- Amplitude
- Fully captured A-scan and gate configuration for accurate post inspection analysis
- Full scan replay with multiple gates:
- Near side (external) defect sizing
- Far side (internal) defect sizing
- Composite analysis
- Save C-Scan data, with optional A-Scan and gates
- Export A-scan, B-scan, C-scan and 3D views as digital images
- Export C-Scan data as .CSV files for MS excel
The
corroison mapping control software has been written especially for the latest generation notebooks which fully utilises the Microsoft 7 operating platform.
The intuitive data acquisition and analysis software shows a real-time display of the ultrasonic A-scan, C-scan, thickness measurement and positional data whilst scanning at 730 mm per second with a maximum resolution of 2 mm x 2 mm. All of this information is recorded when a scan is saved.
The RMS software seamlessly integrates scanner control, data capture, data analysis and reporting tools into one user friendly package.
The software features a modular user interface, designed so RMS operators can quickly hide infrequently used controls, restore hidden controls with one click and save specific screen layouts for future use.
The ultrasonic controls built into the RMS software are similar to those found on a standard ultrasonic flaw detector so a trained ultrasonic operator can quickly become familiar with all controls and functions.
Multiple A-scan gates can be added to measure between several parts of the A-scan trace. This means it is possible to measure the signal amplitude, part thickness, internal surface profile and external surface profile simultaneously.
The RMS software is designed around the use of C-scan ‘layers’. This allows the RMS operator to quickly switch between each of the multiple C-scan views generated when using multiple A-scan gates.
During a scan, the A-scan trace and resulting C-scan image are shown within the RMS software in real time.
A-scan gates can be added or adjusted even after a scan is completed. This allows the operator to re-analyse the A-scan data after correcting the gate settings to produce a more accurate C-scan image. This powerful tool minimises the need for re-scanning due to changes in surface condition or minor set-up errors.
The RMS software automatically stores the A-scan data, C-scan image and gate information. Once a scan has been completed, the data can be analysed using a range of display options including A-scan, B-scan, C-scan and 3d C-scan views. These powerful viewing tools provide detailed information and allow high resolution and accurate reports to be generated quickly.
The A-scan window displays a live view of the A–scan during a scan. It also shows each of the A-scan gates currently in use.
The A-scan window is also used to display the A-scan trace from a specific area of a saved C-scan. The operator can simply move or hover the cursor over a part of the saved C-scan image to view the A-scan trace for that area.
Generally, the C-scan window shows a plan view of the scanned area, with differing thicknesses represented as changes in colour. All C-scan colour options are fully customisable.
The X and Y position and the recorded thickness measurement are displayed next to the cursor while the cursor is moved or hovered over the C-scan image.
A 2-axis B-scan thickness profile is displayed above, and to the side of the c-scan image.
The B-scan thickness profile is also updated by moving or hovering the cursor over the C-scan image.
C-scan layers can be used to display a detailed, rotating 3D C-scan view of the saved scan.
This view shows the thickness of the part, and also the external surface profile, and the internal surface profile.
All A-Scan, B-scan and C-scan views can be either printed directly from the software, or saved as digital images in order to create a detailed report.
Saved RMS data can also be exported as .csv files for analysis with other 3rd party software such as Microsoft Excel.
RMS2 600 Technical Specification
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Dimensions |
Length 440 mm x Width 826 mm x Height 185 mm |
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Weight without cables |
20 Kg |
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Adhesion |
Magnetic wheels
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Pull off force |
100 Kg |
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Drive |
1 off stepper motor per tractor unit
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Scan Width |
600 mm
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Minimum Pipe Diameter |
650 mm |
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Umbilical Cable |
15 metre or 30 metres
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Transducer |
5Mhz (Optional 2.5Mhz & 10Mhz) |
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Power supply
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220/110 vac input
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RMS2 300 Technical Specification
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Dimensions |
Length 440mm x Width 565 mm x Height 185 mm |
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Weight without cables
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20 Kg |
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Adhesion |
Magnetic wheels
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Pull off force |
100 Kg |
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Drive |
1 off stepper motor per tractor unit
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Scan Width
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300 mm
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Minimum Pipe Diameter |
650 mm |
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Umbilical Cable |
15 metre or 30 metres
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Transducer |
5Mhz (Optional 2.5Mhz & 10Mhz) |
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Power supply
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220/110 vac input
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RMS2 450 Technical Specification
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Dimensions |
Length 405 mm x Width 990 mm x Height 197 mm |
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Weight without cables
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20 Kg |
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Adhesion |
Magnetic wheels
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Pull off force |
100 Kg |
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Drive |
1 off stepper motor per tractor unit
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Scan Width
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450 mm
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Minimum Pipe Diameter |
152 mm |
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Umbilical Cable
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15 metre or 30 metres
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Transducer |
5Mhz (Optional 2.5Mhz & 10Mhz)
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Power supply |
220/110 vac input
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Ultrasonic Technical Specification
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Pulse Voltage |
-40 to -300, 256 steps |
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Pulse Width
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50 ns to 320 ns in 20 ns step |
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Damping
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500Ω |
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Receiver Gain
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0 dB to 80 dB in 0.1dB increments. |
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Filter
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0.6 MHz to 18MHz fixed |
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Waveform
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Full rectify, + half rectify, - half rectify, or RF |
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Sampling Rate |
50MHz |
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Resolution |
8 bits (0 to 255) |
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Waveform Length |
1 to 8190 |
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Trigger Source |
+external, -external, internal or software |
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Transducer Range |
1 to 10 MHz |
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Post Trigger delay
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0 to 16,370 samples in 1 sample step |

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Technology Driven Not Operator Dependant
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