GSSI SIR 4000, Руководство пользователя

Страница: 40 / 163

Geophysical Survey Systems, Inc. SIR® 4000
Manual
MN72-433 Rev F 34
2.4: The Toolbar
The six keys across the bottom of the data display window have different functions depending on whether
you are in Setup Collect/Playback Mode, data collection, or data playback.
In Setup Collect Mode
In Setup Collect Mode, the Toolbar will appear like this:
Init(ialize)
This button stops and instantly restarts the transmitter. Through the Initialization process all settings that
are set to Auto, such as Gain or Position, will reset based on the current quality of the scan trace.
•
To Initialize the system just press the Init control button one time.
Gain
This Gain option is also
referred to as display gain. It
increases the amplitude of your
data by multiplying every
sample by a constant value.
This will enhance weaker
reflections, but those already
strong reflections may be over-
gained. This function is useful
for a quick viewing of data that
is attenuated or otherwise
under-gained to guarantee that
it was not clipped.
•
You can change the Gain from -12 to 60. Negative values weaken the entire signal, and positive
values strengthen it.
•
To modify Gain press the Gain control button and use either the Control Knob or Right/Left
Arrow keys to adjust the gain amount.
•
Display Gain is only for display and is not saved with the data.
Zoom
This option modifies the horizontal scale by zooming in or out by factors of ½x, 1x, 2x, 4x, or 8x.
•
The system defaults to 1x Zoom on initial startup and when data collection begins.
•
This does not affect how the data are saved.