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Isonic Workstation

The Isonic Workstation combines computer based ultrasonic data acquisition and display with manual scanning. This provides many of the benefits of automated ultrasonics with lightweight equipment and without the need for a complex mechanical scanner.

MBI currently has software and probes for corrosion mapping and (angle beam) weld inspection applications.

Other specialist applications such as long range ultrasonic scanning of tank annular plates are also possible.

Brief Description

The ultrasonic probe is carried in a holder incorporating an acoustic transmitter. Airborne ultrasound from the transmitter is detected by two receivers located along a reference bar. This allows the computer to track the probe position.

A second transmitter also allows tracking of the probe swivel angle as shown in the picture. This allows proper plotting of indications when skewing the probe during an angle beam (weld) inspection.

The Workstation incorporates a programmable pulser-receiver that allows use of a wide range of dual or single element probes.

Particularly useful for angle beam weld inspection is the coupling monitor and scan pattern display. This shows the coverage achieved and whether the probe is properly coupled to the test piece.

Capabilities

• Corrosion mapping with colour coded top, side, end and sectional views.
• Angle beam (weld) inspection with accurate tracking of the beam path. Indications are plotted with colour coded amplitude levels based on the reference block.
• Real time A-Scan display (not shown) allows “peaking inâ€? of indications and identification of false readings or artefacts.
• Long range UT probes and software available for tank annular plate scans.
• Rapid setup and simple operation.
• UT data, setup and scan information stored for reference; suitable for monitoring corroded areas or known flaws.

Limitations

• More demanding on the operator than manual scans where probe coverage is not monitored. Not suitable for high resolution corrosion scans of large areas.
• Requires coatings to be in good condition or surface preparation as for other ultrasonic techniques.

Preparation

• Test surfaces must be free of rust, scale, spatter and other contaminants that impede ultrasonic coupling. Well-bonded paint is usually acceptable.

Services Required

• Provision for equipment and personnel access.
• 110V power is usually required.
• Requirements for insulation removal and surface preparation similar to those for manual UT.
• Water supply (if used as couplant.)