GSSI SIR 4000, Руководство пользователя

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Geophysical Survey Systems, Inc. SIR® 4000
Manual
MN72-433 Rev F 52
Step 4 – Data Collection
Collect each survey profile as a separate file.
1
Position the center of the antenna on the baseline of your grid. The antenna has black lines on it that
mark the center. For 4-wheel carts there are lines on the black frame of the cart marking the center.
2
To begin data collection, press the green Start button one time.
3
At the end of each profile, press the red Stop button one time. You will be prompted to save the file.
Before saving the file, reposition your antenna so that it is in place to begin collecting the next profile.
Once the antenna is in position select Save.
4
Repeat steps 1-3 until finished with the first direction of the grid.
5
At the end of your last profile in each direction, push and hold down the red Stop button to stop data
collection and return to the Collect Setup screen. The profile will be saved and can be viewed in
Playback mode.
6
If collecting a bi-directional 3D grid, create a new datapath and then repeat steps 1-5 in the new
direction.
3.3: Setting Up for Time Mode Data Collection
The scan spacing (horizontal resolution) of Time-based data profiles is a function of the speed that the
system is collecting data (Scans/Second) and the rate the antenna is moving over the survey surface. Data
density is improved with higher Scans/Second and slower antenna speed.
Time-based data has no real distance tag, so the software does not know how far you actually traveled. It
is extremely important to move the antenna at a constant speed and to add user marks (by clicking the
mark button) at consistent intervals. Time-based data requires additional processing in RADAN to create
a 3D image. If 3D imaging is your goal, it is ideal to collect Distance-based data with a survey wheel.
Step 1 – Introduction Screen
Press the green power button and wait for the SIR 4000 Introduction Screen to appear.
Expert Mode:
Select Expert Mode from the rotating list at the top of the Introduction Screen.
General Settings:
Once the Introduction Screen loads, verify that you are using the appropriate
Language, Units of Measure, and Theme. These options are available in the Toolbar at the bottom of the
screen.
Antenna:
If not using an antenna with “Smart ID” choose an antenna frequency from the list of available
frequencies.
GPS:
Configure the GPS. Refer to Chapter 7: Using a GPS with your SIR 4000 for instructions on how to
configure the GPS.
New Project:
Select New Project and enter in a new Project Name. This will be the name of the folder
where all of your files will be stored and the default name of the files as well. Once you provide a name
and press Apply you will automatically leave the Introduction Screen and enter the Collect Setup Screen.