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Use the vertical line of the reticle to orientate, make A, B and
C at the same line accurately. There must be a clear mark for point
B on the ground to focus .
Whether the prism center of the point B coincide with the
instrument center is the guarantee of checking the accuracy, so,
you have better use tripod and all-purpose tribrach, for example,
if you change the three-jaw type prism connector with tribrach,
keep the tripod and tribrach stable, just change the prism and the
part above the tribrach of instrument, and it can reduce the error
of misalignment.
11.9 The parallelism of collimation axis and
photoelectricity axis
Checkout
1. Place a reflector prism 50 meters away from the
instrument
2. Focus on the reflecting prism center with telescope
crosshair accurately .
3. Observe the maximum signal value through
starkey(
★
)→Para.→Signal, find the center of the launch axis.
4. Check whether the telescope crosshair center coincide
with the emission photoelectricity axis center, if they coincide on
the whole we can say it qualified.
Calibration
If the telescope crosshair center deviate from emission
photoelectricity axis center largely, send it to professional repair
and calibration department.
11.10 Non-prism ranging
The red laser beam is coaxial with the telescope, used for no
prism ranging , and it is sent by telescope. If the instrument has
been calibrated, red laser beams will coincide with the line of
sight. The external influence such as the vibration, the larger
temperature change and other factors may make laser beam and
viewing not overlap.
Before precise ranging, you should check whether the
direction of the laser beam is coaxial . Otherwise, it could lead to
inaccuracy.
Warning
:
Looking straightly at the laser is dangerous.
Prevention
:
Don't look laser beams directly, or focus on others.
