90
Revision 00 EN - 01/2021
HP-MSM-HB
35,0(6
Trigger
Level
0 ... 4096
Delay time
Sequential-control camera
Integration time
Fig. 22.2:
Options for affecting the sequence control of the CCD sensor
Fig. 22.2 on page 90 Shows that the trigger, together with the adjustable delay and integration time, inter-
feres with the sequence control of the CCD sensor. The user can now define discrete time frames in which
the LQM is allowed to measure. The external trigger is connected via a BNC socket meant for this purpose.
Similarly, it also interferes with the sequence control, meaning that it can be handled in the same way as the
internal trigger.
The delay time and trigger type (external or internal trigger) settings are made in the
CCD Settings
dialog
window of the LaserDiagnosticsSoftware LDS.
When you enter a delay or integration time, you must always be sure to confirm these entries with the
Up-
date
button.
There are the following time constants:
Timeout:
20 sec (Standard)
Minimum integration time:
12 µs
Maximum integration time:
186 ms
Minimum delay:
12 µs
Maximum delay:
186 ms
The long timeout time (20 sec.) also helps to measure lasers with a pulse that is manually triggered. If this
is the case, a measurement must first be taken. The HP-MSM-HB will move to the desired position and run
through a certain routine internally. Once the HP-MSM-HB is ready for a trigger, notification of this will be
displayed in the
Free Communication
dialog window. Right after the measurement is initiated, a communi-
cation flow will be visible.
If this stops with the indication
Waiting for Trigger
, then the HP-MSM-HB is waiting for a trigger.
Every measurement of the HP-MSM-HB consists of a dark measurement and a measurement with photo
transfer. This applies for triggered as well as untriggered operation. This means that each measurement
requires at least two trigger signals or two laser pulses.
