DMTA-10084-01EN, Rev. 2, November 2018
Gates
77
1stPeak
Acquires measurement readings based on the position of the first peak to
break the threshold of the gate within the gated region (see Figure 7-6 on
page 77).
J-Flank
Acquires thickness measurement readings based on the position of the first
crossing point of a gated signal and amplitude measurement readings from
the highest peak of the first echo in the gated region (see Figure 7-6 on
page 77).
Figure 7-6 Gate trigger indicator in 1stPeak (left) and J-Flank (right) modes
G(1,2) RF
In unrectified (RF) mode, used to choose the polarity of the gate. These are the
options:
Dual
The gate appears in the positive and negative side of the x-axis. Position and
width are identical, and the gate level mirrors across the x-axis (for example:
25 % and −25 %).
Positive
The gate appears only on the positive side of the x-axis.
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