BOREAL LASER GasFinderMC-2, Руководство по эксплуатации

Страница: 50 / 90

7.8
Boreal Laser Inc. GasFinderMC Operation Manual — Troubleshooting July 17th 2017
Rather than use a motorised mount to adjust the alignment of the
Remote Head, the preferred to solution is to use a dispersed array of
retro refl ectors.
In the preceding example, the fi nal retro array will be similar to the
shape shown in fi gure 3.
The number of retros may have to be increased from the number
used in the single enclosure, and their spacing will also have to be
changed. Contact Boreal Laser for more specifi c details.
Centering the Cross Hairs with the Centre of the Laser Beam
At 400m, the diameter of the beam is •
about 600mm, so the area of the beam
may be larger than the enclosure. To
fi nd the edges of the beam, the Remote
Head has to be traversed horizontally
and vertically until the light level drops.
Note where the cross hairs are in the
scope relative to the retro at these
positions, (see Figure 4) and position
the Remote Head, so that the cross
hairs are in the centre of the travel. In
the example shown, the cross hairs
would be at the top right corner of the
retros when the beam is centred on the
retro.
Looking through the telescope, and without adjusting •
the alignment of the Remote Head, adjust the
crosshairs to the centre of the refl ector. This is done
by removing the two cover caps in the centre of the
scope body and turning the screws underneath so
that the cross hairs are centred on the middle of the
retro. The vertical cross hair is adjusted by the screw
on the top, and the horizontal cross hair is adjusted
by the screw on right.
Figure 3
13:00
20:00
07:00
02:00
Figure 4
vertical top edge
vertical bottom edge
horizontal left edge
horizontal right edge
centre of
‘scope travel
beam coverage
Cross Hair adjustment
screw covers
Horizontal Vertical