Matrix Vision mvBlueLYNX-X, Техническое руководство, Страница: 128 / 236

mvSmearReduction
smear reduction in triggered and non-overlapped mode. •
14.1.4 Counter And Timer Control
The "Counter And Timer Control" is a powerful feature which MATRIX VISION customers already know
under the name Hardware Real-Time Controller (HRTC). mvBlueLYNX-X provides:
4 counters for counting events or external signals (compare number of triggers vs. number of frames;
overtrigger) and
•
2 timers. •
Counter and Timers can be used, for example,
for pulse width modulation (PWM) and 1.
to generate output signals of variable length, depending on conditions in camera. 2.
This achieves complete HRTC functionality which supports following applications:
frame rate by timer 1.
exposure by timer 2.
pulse width at input 3.
The "Counter And Timer Control" contains features like
Feature name (acc. to SFNC) Property name (acc. to
mvIMPACT Acquire)
Description
CounterSelector counterSelector Selects which Counter to configure.
CounterEventSource[CounterSelector] counterEventSource Selects the events that will be the
source to increment the Counter.
CounterEventActivation[CounterSelector] counterEventActivation Selects the Activation mode Event
Source signal.
etc.
TimerSelector timerSelector Selects which Timer to configure.
TimerDuration[TimerSelector] timerDuration Sets the duration (in microseconds) of
the Timer pulse.
TimerDelay[TimerSelector] timerDelay Sets the duration (in microseconds) of
the delay.
etc.
related to the usage of programmable counters and timers.
Because there are many ways to use this feature, the list of use cases is long and not finished yet:
External trigger by incremental encoder •
Creating different exposure times for consecutive images •
Synchronized acquisitions using timers •
Generating a pulse width modulation (PWM) •
Outputting a pulse at every other external trigger
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mvBlueLYNX-X Technical Manual
118 22 April 2016 Version - 1.49 MATRIX VISION GmbH