GE Inspection Technologies calibration blocks provide known targets that produce echo indications that are used for instrument setup, transducer evaluation, and reference for evaluating flaw size.
Type 1 IIW
Large angle beam calibration block
4.0 in (101.6 mm) radius for angle beam range calibration
Measure beam index point and refracted angle
Also used to check resolution and sensitivity
Type 2 IIW
Same as IIW Type 1 with 2 in (50.8 mm) and 4 in (101.6 mm) radii for range calibration
Side drilled holes also added for resolution check
AWS Type DSC Block
Small block for angle beam distance and sensitivity calibration
1.0 in (25.4 mm) radius opposite a 3.0 in (76.2 mm) radius
0.375 in (9.5 mm) slot in the 3.0 in (76.2 mm) radius
Also used to check beam index point and refracted angle
Features:
3 blocks to choose from
Provide a known target
Used for instrument setup, transducer evaluation, and reference for evaluating flaw size