Displaying Data
2-11
April 2008
Displaying the
Transducer Signal
The
SIGNL
submenu permits the direct graphical display of several
transducer signals. Specifically, the signals listed in Table 2-5 below
may be viewed in this format.
Note:
Only one side of the display (either left or right) can show a
signal at any given time.
Note:
The Measure type signals (Mup and Mdown) are only
available if the
S/M
burst technique was selected in the
ACTIV
menu.
Refer to Figure A-5 on page A-5 and complete the following steps to
display the transducer signals. Press the appropriate side of the
[SCREEN]
key to activate the desired pane of the display screen, then
proceed as follows:
Note:
For this discussion, it is assumed that the left pane of the
display screen is active. If the right pane is active, it is only
necessary to replace the
[F1]-[F4]
keys designations by the
[F5]-
[F8]
keys.
1.
To access the
Display Menu
, press the
[DISP]
key.
2.
Press [
→]
and
[F1]
=
SIGNL
.
3.
Press
[F1]
to display the
Skan
type signals or press
[F2]
to display
the
Measure
type signals.
Note:
If the
Skan
burst technique was selected in the
ACTIV
menu, the
Signal to Display
prompt does not appear and the Measure type
signals are not available. To access these signals, the
S/M
burst technique must be selected.
The signal graph is a plot of signal amplitude (y-axis) vs. time in
microseconds (x-axis). When the
SIGNL
display screen first appears, it
may briefly remain blank. As soon as the signal is acquired,
processed and loaded into the display memory, the graph will appear.
A
cursor
, which is displayed as a vertical line that extends the full
height of the graph window, is used to highlight any point in time
along the x-axis.
Table 2-5: Available Transducer Signals
Transducer Signal
Description
Skan Types
Sup
upstream Skan signal
Sdown
downstream Skan signal
Cup
upstream Skan correlation
Cdown
downstream Skan correlation
Measure Types
Mup
upstream Measure signal
Mdown
downstream Measure signal
Summary of Contents for DigitalFlow GC868
Page 8: ...Chapter 1 ...
Page 61: ...Chapter 2 ...
Page 78: ...Chapter 3 ...
Page 91: ...Chapter 4 ...
Page 105: ...Chapter 5 ...
Page 111: ...Chapter 6 ...
Page 123: ...Appendix A ...
Page 132: ...Appendix B ...
Page 133: ...Data Records Option Cards Installed B 1 Initial Setup Data B 2 ...
Page 136: ...Appendix C ...
Page 156: ...Appendix D ...