Phase-Accurate Synchronization of Acquisitions
The synchronization process works by placing all system sequences in a ‘Wait for Trigger” state. When the Master sequence arrives at the sync point, it enters the wait state and sends a trigger signal to the Synchronization Module. The Module then triggers all systems, including the Master, and these start their acquisitions to within a fraction of a nanosecond of each other because they all share the same master clock.
Each controller may store its data for post-acquisition reconstruction of the combined coherent data set, or transfer the data to the Master for immediate processing (at a frame rate that depends on the data transfer speed between computers). The user may configure their local network as needed, based on their application.
A block diagram for a 32×32 array directly connected to four Vantage 256 systems synchronized using the Synchronization Module illustrates how simple the synchronous acquisition setup can be.