162 Chapter 12
To adjust CW Doppler mode gain:
•
Turn the
[
M/Doppler Gain
]
dial.
or
•
Click Gain under Doppler on the left side of the screen and drag the slider (or
point at Gain and press
[
+/-
]
).
The current Doppler gain setting (a percentage) is displayed on the screen next
to Gain.
Wall Filter
In CW Doppler mode, you can set the cutoff frequency for the wall filter.
To set the cutoff frequency for the wall filter:
•
Click Wall Filter under Doppler on the left side of the screen and select the
value you want (or point at Wall Filter and press
[
+/-
]
).
or
•
Press
[
Filter
F
]
to step through the available values.
The current setting is displayed on the screen next to Wall Filter.
Invert
In CW Doppler mode, you can invert the spectrum on the screen.
To invert the spectrum or to return to the default:
•
Press
[
I
nverse
]
to toggle between the default and inverted color coding.
The frequency axis is inverted to match the spectrum.
Baseline
In CW Doppler mode, you can reposition the baseline. The baseline separates
forward flow from reversed flow, and moving the axis can help overcome aliasing
problems.
To adjust the baseline:
•
Press
[
Baseline
e
]
to move the baseline up or down.
The frequency axis is updated to match the spectrum.
Sweep Speed
You can adjust the sweep speed to change the number of cycles of the spectrum
displayed on the full time axis.
Содержание Pro Focus 2202
Страница 1: ...English BB1279 A June 2005 Pro Focus 2202 Extended User Guide ...
Страница 14: ...14 ...
Страница 15: ...Part 1 Basics ...
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Страница 32: ...32 Chapter 1 ...
Страница 48: ...48 Chapter 2 ...
Страница 49: ...Part 2 Working with the Image ...
Страница 50: ......
Страница 98: ...98 Chapter 5 ...
Страница 117: ...Part 3 Imaging Modes ...
Страница 118: ......
Страница 136: ...136 Chapter 8 ...
Страница 152: ...152 Chapter 10 ...
Страница 164: ...164 Chapter 12 ...
Страница 165: ...Part 4 Setting up and Maintaining Your System ...
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Страница 200: ...200 Chapter 13 ...
Страница 208: ...208 Chapter 14 ...
Страница 209: ...Part 5 Pro Packages ...
Страница 210: ......
Страница 288: ...288 Chapter 19 ...
Страница 313: ...Part 6 Appendixes ...
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Страница 344: ...344 Appendix C ...