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4 Image Acquisition
4.4
Exposure Control
E
x p o s u r e C o n t r o l
E x p o s u r e S t a r t T r i g g e r
E x p o s u r e E n d T r i g g e r
E x p o s u r e A c t i v e
E x p o s u r e S t a r t
E x p o s u r e E n d
Figure 4.8: Exposure Control Block
A frame consists of an exposure cycle and an image read out. The exposure control block takes
care of the exposure cycle. The camera has two modes of exposure time operations, which are
defined by the exposure mode settings:
•
Timed Exposure
•
Trigger Controlled Exposure
4.4.1
Exposure Mode
The exposure mode configuration defines, if the exposure time is controlled by the exposure
time registers or by the triggers. Following configurations are available:
Timed Exposure
The exposure time is defined by the exposure time register. The value will
determine the exposure time for each frame.
Trigger Controlled Exposure
The exposure time is controller by exposure start and exposure
end triggers (see Section 4.4.2 and Section 4.4.3 for more information).
4.4.2
Exposure Start Trigger
The exposure start trigger is used to start an exposure.
Exposure Start Trigger Mode = on
As soon as a exposure start trigger has been received, the
camera starts with the exposure cycle, which is showed by the "Exposure Active" status.
The exposure remains until an exposure end trigger has been received (see Section 4.4.3).
The camera is ready to process exposure start triggers, when the acquisition is active,
showed by the "Acquisition Active" status, and when the "Frame Trigger Wait" status is
asserted.
Exposure Start Trigger Mode = off
The exposure start triggers are ignored.
The exposure start trigger is only available, when the exposure mode is set to
"trigger controlled". The camera sets the trigger modes of this trigger automat-
ically to on, when the exposure mode is set to "trigger controlled" and vice versa
to off when the exposure mode is set to "timed".
4.4.3
Exposure End Trigger
The exposure end trigger is used to terminate an active exposure cycle.
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MAN093 08/2021 V1.1
Содержание MV4 Series
Страница 8: ...CONTENTS 8 of 143 MAN093 08 2021 V1 1 ...
Страница 12: ...1 Preface 12 of 143 MAN093 08 2021 V1 1 ...
Страница 16: ...3 Product Specification Figure 3 1 Photonfocus MV4 UV 10 GigE GT camera series 16 of 143 MAN093 08 2021 V1 1 ...
Страница 40: ...4 Image Acquisition 40 of 143 MAN093 08 2021 V1 1 ...
Страница 42: ...5 Exposure Control 42 of 143 MAN093 08 2021 V1 1 ...
Страница 52: ...6 Counter Timer 52 of 143 MAN093 08 2021 V1 1 ...
Страница 64: ...10 Image Format Control 64 of 143 MAN093 08 2021 V1 1 ...
Страница 66: ...11 Frame Rate 66 of 143 MAN093 08 2021 V1 1 ...
Страница 82: ...12 Pixel Data Processing 82 of 143 MAN093 08 2021 V1 1 ...
Страница 92: ...12 Pixel Data Processing 92 of 143 MAN093 08 2021 V1 1 ...
Страница 96: ...13 Precautions 96 of 143 MAN093 08 2021 V1 1 ...
Страница 120: ...16 Troubleshooting 120 of 143 MAN093 08 2021 V1 1 ...
Страница 126: ...19 Support and Repair 126 of 143 MAN093 08 2021 V1 1 ...
Страница 128: ...20 References 128 of 143 MAN093 08 2021 V1 1 ...
Страница 132: ...A Pinouts 132 of 143 MAN093 08 2021 V1 1 ...