Dakota Shear Wave Standard Transducers are large single element ultrasonic transducers used with angle beam wedges for flaw detection in welds and components. Surface-breaking and internal flaws such as cracks and lack of fusion do not always lie perpendicular to a straight beam, so a shear wave introduced at an angle reaches defects a compression wave would miss. Fixing the Dakota Shear Wave Standard Transducers to wedges of different angles produces shear wave velocity measurements, and used with the Trigonometry feature of the gauge, the Dakota Shear Wave Standard Transducer locates and sizes those flaws.

The range for the Dakota Shear Wave Standard Transducers covers three frequencies, 1.00 MHz, 2.25 MHz and 5.00 MHz, in probe diameters of 1/2 x 1/2 inch, 1/2 x 1 inch, 5/8 x 5/8 inch, 5/8 x 3/4 inch and 3/4 x 3/4 inch. The 1.00 MHz units (for example PSS50501B and PSS50101B) use a composite element with S damping, while the 2.25 MHz and 5.00 MHz units use a standard element with HG damping (SSG part numbers) or R damping (SSR part numbers). Each Dakota Shear Wave Standard Transducer is available with a Microdot or BNC connector and is suitable for use with the FX70, FX71, FX80 and FX81 gauges.

The Dakota Shear Wave Standard Transducers are used in non-destructive testing across welding, fabrication, corrosion and structural integrity inspection. Couplant, transducer cables and ElcoMaster software for reporting are available as accessories for the Dakota Shear Wave Standard Transducers. They are supplied by BAMR, South Africa's authorised Dakota distributor.