Olympus OmniScan MX UT Portable Ultrasonic Flaw Detector

Olympus Updated: 2007-09-11

Time-of-Flight Diffraction (TOFD) Testing

TOFD is a technique that uses two probes in pitch-and-catch mode. TOFD detects and records signals diffracted from defect tips for both detection and sizing. The TOFD data is displayed in a grayscale B-scan view. TOFD offers wide coverage and amplitude-independent sizing compliant with the ASME‑2235 code.

* One-line scan for full-volume inspection
* Setup independent of weld configuration
* Very sensitive to all kinds of defects and unaffected by defect orientation

Time-of-Flight Diffraction (TOFD) and Pulse-Echo Testing

While TOFD is a very powerful and efficient technique, it suffers from limited coverage resulting from two dead inspection zones: one dead zone is near the surface, the other is at the backwall.
OmniScan UT allows inspections simultaneously combining TOFD with conventional pulse echo. Pulse echo complements TOFD and covers the dead zones.

* TOFD inspection
* 45º pulse-echo for weld cap inspection on either sides of the weld
* 60º pulse-echo for weld root inspection on either sides of the weld

0‑Degree Testing (Corrosion and Composite)

The 0-degree testing measures time-of-flight and amplitude of ultrasonic echoes reflecting from the part into gates in order to detect and measure defects.

* C‑scan imaging
* Full A‑scan recording with C‑scan postprocessing