DMTA-10084-01EN, Rev. 2, November 2018
Chapter 11
172
Figure 11-18 Completed Custom DAC
When the customized DAC curve points have been captured and completed, you
have full capability to toggle between DAC and TCG views, to manipulate Range,
Delay, CAL Zero, and Angle, and to add necessary scanning gain, curve gain
adjustment or transfer correction. The TCG view of any custom DAC curve includes
the user-defined reference curves as well as the primary DAC curve. The Custom
DAC curve also incorporates the reference correction functionality, if desired.
11.4 DGS/AVG
The DGS/AVG option permits complete DGS/AVG setups to be performed on the
instrument. With the onboard DGS/AVG method, you can size defects based on a
calculated DGS/AVG curve for a given transducer, material, and reflector size. This
method requires that you only have one reference reflector to create a DGS curve for
flaw sizing. This is much different than the DAC or TCG method, which requires that
you have representative defects at various depths within a part in order to create a
curve for flaw sizing.
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