Ultrasonic Flaw Detection Tutorial
4.3 Typical Angle Beam Setup Procedure

Angle beam calibration requires use of an appropriate test block that provides two sound paths of known length. Commonly this will be an ASTM E-164 or IIW-type block, although other standards like AWS DSC blocks can also be used. The general procedure description below assumes use of an IIW Type 1 calibration block or equivalent.

As with any other transducer calibration, this should be performed using a block made of the same material as the test piece. Angle beam calibration blocks are commercially available in a variety of steel alloys as well as aluminum and titanium.

Typical Dual Element Transducer Setup Procedure  Flaw Detection Tutorial Next Chapter
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