Olympus EPOCH 6LT, User Interface Manual

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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.