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Time-of-flight diffraction (TOFD) transducers and wedges generate refracted longitudinal waves in steel. These highly damped probes provide a high resolution for ultrasonic testing of welds. Phoenix manufactures composite and non-composite TOFD transducers of varying frequencies from 2MHz to 15MHz and crystal diameters ranging from approximately 3mm (0.125″) to 20mm (0.787″). To accompany this range is a wide selection of TOFD wedges manufactured from durable plastic, brass, or stainless steel to suit varying inspection environments.

Browse through our extensive range of TOFD transducers and wedges below. For any inquiries, contact our NDT experts at +44 (0) 1925 826000 or

TOFD Transducers and Wedges