GSSI SIR 4000, Руководство пользователя

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Geophysical Survey Systems, Inc. SIR® 4000
Manual
MN72-433 Rev F 113
1
Locate the origin point (0,0) and pull a tape measure 10 units to find the point 10,0 (blue line a). This
is your baseline.
2
Pull one tape measure 10 units from (0,0) (green
line b) to (0,10).
3
Pull one tape measure from (10,0) to (0,10) (green
line c).
4
Move both green tapes together so that 10 on line
b connects to 14.14 on line c. The point that they
connect is the grid corner. You will know that the
corner at (0,0) is square because this method
produces a right triangle.
5
Repeat for the corner (10,10).
6
Once the grid corners are set you’ll need to mark
the starting and ending point of each line you’re
going to collect. You could either leave the
baselines on the ground or put markers, such as
pin flags, along each baseline. In the example to
the right you would put a flag at the beginning and the end of each orange arrow.
7
Photograph or make a sketch map of the grid.
Notes to include in the sketch map:
•
X and Y axis
•
Starting corner
•
Direction of the first and second line in each direction
•
Obstacles located within the grid
•
Location of trees inside and outside of the grid
•
Features that are visible on the ground surface
7.3: Setting Up Digital
3D Collection
Digital 3D mode on the SIR 4000 has
the same menus as Digital 2D mode
described in Chapter 5. However, the
Digital 3D menus have additional
options specific to digital antennas and
LineTrac.