Dalsa Linea Lite GigE Series - Rotary Encoder Interface Timing

Linea Lite GigE Series Camera Camera Performance and Features • 45
Pulse Width Exposure Timing
The sensor exposure time is 3.2 µs longer than the exposure pulse. Therefore the actual exposure
time is 3.2 µs longer than the exposure time determined by the trigger.
Figure 36: 4k External Trigger with Pulse Width Exposure Control
Figure 37: 2k External Trigger with Pulse Width Exposure Control
Rotary Encoder Interface Timing
Web inspection systems with variable web speeds typically provide one or two synchronization
signals from a web mounted rotary (shaft) encoder to coordinate trigger signals. When using an
external trigger such as a rotary encoder, a continuous stream of encoder trigger pulses (ticks),
synchronized to the object motion, establishes the line rate. The faster the object’s motion is, the
higher the line rate.
The Trigger Source feature specifies the trigger signal for the selected trigger type (
Trigger
Selector feature). The Rotary Encoder is only available for the Single Line Trigger.