5. Making Conventional Measurements
PHASOR XS Operating Manual
Page 73
NOTE:
TCG reference points, curve, and status (OFF,
TCG, OR DAC) will be stored with a data set. When
recalled, curve status will be the same as when it was
stored. For example, if TCG is active when a data set is
stored, it will be active when that data set is recalled.
5.10.2 Working with TCG
In TCG mode the instrument uses the recorded reference
points to calculate an amount of gain correction required to
display each echo from same-size reflectors at the same
amplitude (
Figure 5-8
). The recorded reference point
data is stored until replaced or edited. To use the stored
reference points and operate in TCG mode:
Step 1:
With the DAC/TCG Menu accessed, select the
SETUP Submenu.
Step 2:
Press
next to the TCG/DAC MODE function
until TCG appears (
will appear)
Step 3:
Press
next to the TCG DISPLAY function to
turn this feature ON or OFF.
NOTE:
The TCG curve begins at the first reference
point recorded. It then proceeds horizontally from this
amplitude of this first reference point to the depth (time
position) of the last reference point recorded.
5.11
Adjusting DAC or TCG Display and
Adding Offsets
Once the DAC or TCG curves are displayed, the addition
of guidelines offset from the reference line by a fixed or
variable dB value, provides enhanced evaluating abili-
ties. Similarly, the TRANSFER CORR function applies dB
compensation for the difference in coupling conditions
between the known standard and the test piece.
Defining DAC or TCG Curve Offsets
(DAC/TCG-OFFSETS-MODE)
To add a series of guidelines, offset from the DAC or TCG
curve by a definable dB increment (but not to
or – 24 dB from the reference curve):
Step 1:
Access the OFFSETS Submenu (located in the
DAC/TCG Menu).
FIGURE 5-8—TCG Curve
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Страница 6: ...Contents Page 4 PHASOR XS Operating Manual ...
Страница 16: ...1 Phased Array Operation Keypad Menus and Displays Page 14 PHASOR XS Operating Manual ...
Страница 24: ...2 Setting Up for Phased Array Measurement Page 22 PHASOR XS Operating Manual ...
Страница 45: ...3 Operating in Phased Array Mode PHASOR XS Operating Manual Page 43 FIGURE 3 9 TCG Recording Process ...
Страница 86: ...5 Making Conventional Measurements Page 84 PHASOR XS Operating Manual ...
Страница 92: ...6 Storing Data Sets and Generating Reports Page 90 PHASOR XS Operating Manual ...
Страница 96: ...7 Technical Specifications Page 94 PHASOR XS Operating Manual ...