Using Software Options
Part # 910-250C
133
The transducer library is shown below:
Figure 83 Transducer Library
STEP 3:
The operator must now select the reference reflector to be used to draw the DGS/AVG
curves. The choices are:
• Backwall – This can be the backwall from a calibration block or from the sample to
be tested. If the backwall echo from a calibration block is used, then it is important
that the block is made of the same material as the test piece and the soundpath
distance is similar to the expected soundpath distances in the test piece. This reflector
can only be used with normal incidence transducers.
• Side Drilled Hole – This is a common reference defect. A side drilled hole is used for
the sensitivity calibration of an angle beam transducer during a standard shear wave
calibration.
• K1 – IIW Block Arc – This is the 4” (100 mm) arc on an IIW block. This reflector can
be used only with angle beam transducers.
• K2 – DSC Block Arc – This is the 2” (50 mm) arc on a DSC block. This reflector can
be used only with angle beam transducers.
• Flat Bottom Hole – Specialized blocks with flat bottom holes are made for both
normal incidence and angle beam transducers.
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