11Beamage-3 User
’s Manual Revision 4.0
42
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Warning
Each *.BMG file can take up to 8.50 MB on the hard drive. Acquiring
multiple frames can quickly sum up to multiple GigaBytes. If the total
acquisition if over 1 GB, a warning message will appear. If there is only 10
GB left on the hard drive, a warning message will appear and the
acquisition will be stopped.
Fast acquisition should be done o
n the computer’s hard drive and cannot
be done on an external drive or on a server hard drive since it could slow
down the acquisition.
5.4. DIVERGENCE
The divergence tab opens when the divergence button is clicked in the Main Controls (refer to section
).
To compute the divergence and abide by the ISO-11146-1:2005 standard, the first step is to place an
aberration-free lens between the 11Beamage-3 and the laser. The lens should be placed in the far-field of
the laser beam while the 11Beamage-3 is at the lens
’ focal point. The second step is to enter the lens’
focal length in the software. Since the focal length is wavelength dependent, make sure to use the correct
value for your laser in the prior settings. The divergence in both main axes (x and y) are computed as
defined by the ISO-11146-1:2005 and ISO-11146-2:2005 standards and displayed at the bottom of the
“
Divergence”
tab (refer to annex A).
Figure 5-11 Divergence Tab