
4.2 Acquisition Control
4.1.4
Image Acquisition, Frame and Exposure Trigger
The camera can run in "free-running" mode, which means that it captures images
automatically in full frame rate once the acquisition has been started. However the acquisition
and image capturing can be controlled by triggers. For this purposes, there are seven triggers
available:
•
Acquisition Start Trigger
•
Acquisition End Trigger
•
Frame Start Trigger
•
Frame Burst Start Trigger
•
Frame Burst End Trigger
•
Exposure Start Trigger
•
Exposure End Trigger
The source of these trigger can be set for every trigger individually; it can come from an
external line, an internally generated pulse from the counters or timers or from a pulse
generated by a software command. Each of these triggers can be switched on or off
individually. The camera generates the triggers pulses internally, which are switched off. The
following sections (Acquisition, Frame & Exposure Control) show the usage of these triggers.
Each trigger has its own source signal processing path. Section 4.6 gives more information
about the configuration.
4.1.5
Image Acquisition, Frame and Exposure Status
The following list shows the acquisition, frame and exposure related status signals:
•
Acquisition Trigger Wait
•
Acquisition Active
•
Frame Trigger Wait
•
Frame Active
•
Exposure Active
These status signals are used within the camera to control the camera timing. The current state
of these signals can be read out by software. Furthermore it can be connected to an output
line or LED through the I/O control block (see Chapter 6), which allows to track the status from
an external device. The timing of these signals are explained in the following sections.
4.2
Acquisition Control
4.2.1
Acquisition Start and Stop Commands, Acquisition Mode and Acquisition
Frame Count
The camera can only capture frames when the acquisition is started. The acquisition start
command, which is executed by the software, starts the acquisition and prepares the camera to
acquire frames. The acquisition is stopped, when the acquisition stop command is executed or -
depending on the acquisition mode parameter - a certain number of frames is captured.
Following acquisition mode parameters are available:
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Содержание MV3-D640I-M01-144-CL
Страница 10: ...1 Preface 10 of 121 MAN076 09 2017 V1 0...
Страница 34: ...4 Image Acquisition 34 of 121 MAN076 09 2017 V1 0...
Страница 46: ...6 I O Control 46 of 121 MAN076 09 2017 V1 0...
Страница 76: ...9 Pixel Data Processing 76 of 121 MAN076 09 2017 V1 0...
Страница 78: ...10 Thermoelectric Cooler TEC 78 of 121 MAN076 09 2017 V1 0...
Страница 82: ...11 Precautions 82 of 121 MAN076 09 2017 V1 0...
Страница 94: ...12 Hardware Interface 94 of 121 MAN076 09 2017 V1 0...
Страница 100: ...14 Troubleshooting 100 of 121 MAN076 09 2017 V1 0...
Страница 106: ...17 Support and Repair 106 of 121 MAN076 09 2017 V1 0...
Страница 108: ...18 References 108 of 121 MAN076 09 2017 V1 0...
Страница 112: ...A Pinouts 112 of 121 MAN076 09 2017 V1 0...
Страница 120: ...C Use Cases 120 of 121 MAN076 09 2017 V1 0...
Страница 121: ...D Document Revision History Revision Date Changes 1 0 July 2017 First version MAN076 09 2017 V1 0 121 of 121...