TOFD & Phased Array Systems


The Prisma is an advanced flaw detector, which offers the technician an extremely comprehensive tool for test and measurement, which can be upgraded to include TOFD and Phased Array capability. An upgrade can be carried out wherever you are; there is no need to return the instrument, eliminating any downtime.
The Prisma is constructed to exacting standards using a rigid, shock mounted, internal chassis surrounded by an impact absorbing enclosure and sealed to IP66; which ensures the unit is fully sealed against fine dust and jets of water.
Typical applications are broad but include Weld Inspection, Corrosion Mapping, Aerospace and Composite Testing.

Formats available are:

  • Prisma UT

  • Prisma UT + TOFD
  • Prisma UT + PA

  • Prisma UT + PA + TOFD

Prisma UT

Prisma UT The Prisma UT model is fully loaded, carrying all the basic and advanced features of the Sonatest flaw detector range. Prisma UT offers damping control to either optimize near surface resolution or energy transmission. The ability to capture screens is standard combined with automatic reporting capability, which enables reports to be formatted with relative bespoke customer information such as logos etc. The most popular flaw sizing techniques such as DAC, AVG/ DGS, TGC and AWS are all on-board.
Thanks to the on-board software enhancing the B and C-Scan imaging capabilities, the Prisma UT enables field technicians to conduct dedicated corrosion and composite inspections, together with comprehensive on-site thickness profiling.

Prisma TOFD

Prisma UT Time of Flight Diffraction (TOFD) has gained in popularity over the last decade and Prisma TOFD is a truly portable and powerful TOFD unit. Knowing that TOFD inspection can be carried out on wall thickness as thin as 6mm, the Prisma offers the best digitizing frequency of its category going up to 200MHz. With two UT channels the Prisma permits the inspection of thick component in a single pass. This is enhanced by the high voltage square wave pulsers delivering up to 450V.
Prisma TOFD offers the complete hardware configuration to deliver the best performance, but it would be incomplete without the on-board software features such as hyperbolic cursors, lateral wave straightening and lateral wave removal. S, True Top, Side and End view extractions, together with C-Scans, are all supported.

Prisma PA

Prisma PA Ultrasonic Phased Array technology has become the established method for advanced NDT testing applications. Phased Array Techniques allow the user to cover a wider volume of inspection; such as being able to cover the complete span of a weld without the need to move or reposition the transducer. This is possible due to phased array enabling beams to be electronically steered. This technique results in comprehensive imaging of the results showing a quasi cross section of the inspected part.
With the Prisma PA you can switch easily and quickly between the UT and PA operating modes with a simple press of a button, no data or time is lost. The Inspection Plan shows the operator in 2D and 3D where probes are positioned on the test part, simplifying the inspection set up and providing an inspection reference for reporting. All adjustments to focal laws are instantaneous. Multiple sectorial scans, true top, side and end view extractions, together with C-Scans, are all supported.

Prisma is available in two versions i.e. 16:16 & 16:64