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Laser Scanners
RF627, RF627Smart [Revision 2.1.2] 20.09.2021
21. "Triggering settings" tab. Synchronization of
multiple scanners
Where measurements are made by several scanners, it is often necessary to
ensure
synchronous
measurements, in order, for example, to combine profiles obtained
from different parts of the moving object into a single profile.
When installing scanners in a line or around an object or opposite each other, it
becomes necessary to ensure
asynchronous
measurements in order to eliminate the
mutual influence of laser beams on each other.
To synchronize the operation of multiple scanners, the OUT output of one of the
scanners is used. The Rise of the scanner output signal always corresponds to the moment
of switching on the laser of the scanner (the beginning of the integration time), the signal Fall
corresponds to the moment of switching off the laser (the end of the integration time).
21.1. Synchronous measurements
There are two options to connect the scanners for synchronous measurements.
NOTE:
The mode number is the line number in the table of trigger settings (see par.
).
Option 1.
All scanners in the system are configured to operate in one of eight modes, #2...#9
(mode #1 is not used). The event source is connected simultaneously (in parallel) to all
scanners.
Option 2.
·
One of the scanners (hereinafter - Master) is configured to operate in the required
mode, #1...#9.
·
The OUT Master output is initialized.
·
The other scanners (Slave) are switched to mode #3, the operating mode is
"Rise".
·
The Master output is connected to Input #1 of all Slave scanners.
21.2. Asynchronous measurements
To perform asynchronous measurements, the scanners are connected as follows:
·
One of the scanners (hereinafter - Master) is configured in the required mode,
#1...#9.
·
The other scanners (Slave type 1 and Slave type 2) are switched to mode #1.
·
For nearby scanners (Slave type 1 and Slave type 2), the following parameters
are set:
Mode
- Fall and
Mode
- Rise.
·
The OUT Master output is initialized.
