60
Revision 00 EN - 01/2021
HP-MSM-HB
35,0(6
Transfer signals
Meaning
Wait for trigger
Is high when the CCD is at the holding point in line a and is waiting for the trigger signal.
Is low as soon as the trigger is activated and the delay begins. Only a short high pulse
occurs in untriggered operation. Could be used in addition to the trigger out connector to
check triggering.
Integration done
Is high as soon as integration is complete. Is low again when the CCD is read out.
Photo cycle
Is high when the CCD is ready for integration. Is low as soon as integration is complete.
During untriggered operation, the high phase returns exactly the integration time.
Tab. 13.5: Signals that can be sent through the transfer outlet
Please find further information on the menu
Measurement > CCD Settings
in chapter 24.3.5 on page 113.
13.6.6
Option (advanced user only) (menu
Measurement > Option
)
Fig. 13.7:
Dialog window
Option
Enable beam find process
The Beam Find function must be used for caustic measurement. This involves an algorithm that separates
the measuring signal from the measurement artifacts (e.g. noise) via an adjustable trigger threshold and
adapts the size of the measuring window to this signal. This algorithm is only executed in the beam search
plane (Dialog window
Caustic
). On all other measuring planes, the measuring window size is determined us-
ing the fill factor.
If this function is deactivated, the beam search plane must be manually “premeasured” in the measuring
system. Otherwise the measuring system might end up positioning the measuring window on the edge of the
measuring area where there is no measuring signal. This makes it impossible to take a meaningful measure-
ment.
