Allied Vision Technologies Guppy Manuel d'instructions télécharger pdf (Page 160)

Guppy Technical ManualV7.4.0

160

Controlling image capture

Multi-shot

Setting multi-shot and entering a quantity of images in Count_Number in the

61Ch register enables the camera to record a specified number of images.

The number is indicated in bits 16 to 31. If the camera is put into Iso_Enable

mode (see Chapter ISO_Enable / free-run on page 161), this flag is ignored and

deleted automatically once all the images have been recorded.

If multi-shot mode is activated and the images have not yet all been captured,

it can be cancelled by resetting the flag. The same result can be achieved by set-

ting the number of images to 0.

Multi-shot can also be combined with the external trigger in order to grab a cer-

tain number of images based on an external trigger.

Figure 96: Data flow and timing after end of exposure (Guppy F-038/044 also NIR)

One-shot command

C ExSync

Exposure

Integration start

Timebase reg.

shutter reg.

Offset

Processing delay

< 250s

= 8s

Guppy F-025: 42 µs

Guppy F-029: 42 µs

Guppy F-033 109µs

Guppy F-036: -21 µs

Guppy F-038: 42 µs

Guppy F-044: 42 µs

Guppy F-046: 22 µs

Guppy F-080: 34µs

Guppy F-146: 20 µs

Guppy F-503: -42 µs

Timebase x Shutter + Offset = Exposure Time

First packet on bus

= 500s

+/-62.5 s

1 2 ... 155 156 157 158 159 160 161 162 163 164 165 ... 267 268

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Allied Vision Technologies Guppy Manuel d'instructions Page 160