• Ultrasonic probe

Ax7 series

Article: 00114917

Ultrasonic probe

The use of coarse grain corrosion resistant materials such as austenitic alloys for weld, base material, or cladding can make weld inspection difficult with standard pulse-echo shear wave techniques. These alloys cause beam skewing and beam scattering resulting in poor signal-to-noise ratio (SNR). To address these challenges, Olympus has developed a new dual matrix arrays (DMA) probe and wedge series featuring an advanced ultrasonic technique. These probes are used in tandem configuration to generate transmit-receive longitudinal waves (TRL). This technique is less affected by beam degradation and offers significant SNR improvement. In addition, when performing high angle beam steering, the DMA probes are capable of generating surface waves for detection of shallow defects. This is particularly helpful in the presence of cladding or highly attenuative weld material when it is not possible to detect the return echo coming back from the internal wall of the part.

Dual Matrix Array Probes (DMA)
DMA probes consist of two matrix array probes wired to the same connector. Matrix arrays have the capacity to generate constructive beams in normal and lateral directions: one probe performs a sectorial scan and the echoes coming back from the defect are captured using the second probe.

Specifications

  • Technology: ultrasonic

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