Basic Operation and Features
3-26
Basler A400k
DRAFT
3.8.3 Changes to the Max Frame Rate with Area of Interest
When the area of interest feature is used, the camera’s maximum achieveable frame rate
increases. The amount that the maximum frame rate increases depends on the number of lines
included in the area of interest (AOI Height) and the width of the area of interest (AOI Width). The
fewer the number of lines in the area of interest and the smaller the width, the higher the maximum
frame rate.
To determine the maximum frame rate for a given AOI, use your AOI settings to calculate a result
in each of the two formulas below. These formulas take your AOI size into account. The formula
that returns the lowest value will determine the maximum frame rate for the given AOI.
Formula 1:
Formula 2:
For example, using the full AOI height of 1726 lines, the frame rate cannot be higher than
126.9 fps (frames per second). With an AOI height of 200 lines, the frame rate cannot be higher
than 1085.6 fps.
In some exposure modes, you must set the frame period in [µs]. To convert the calculated frame
rate (frames per second) into the frame period [µs], use the following formula:
Max. frames per second (approximated)
50 MHz
AOI Width
2
---------------------------
8
+
⎝
⎠
⎛
⎞
(AOI 1)
×
------------------------------------------------------------------------------------------------------
=
A402
k
:
Max. frames per second (approximated)
50 MHz
AOI Width
4
---------------------------
8
+
⎝
⎠
⎛
⎞
(AOI 1)
×
------------------------------------------------------------------------------------------------------
=
A403
k
:
Max. frames per second (approximated)
50 MHz
AOI Width
8
---------------------------
7
+
⎝
⎠
⎛
⎞
(AOI 1)
×
------------------------------------------------------------------------------------------------------
=
A404
k
:
Maximum frames per second (approximated)
1
AOI Height
2
+
(
)
4.56 µs
×
-----------------------------------------------------------------------------
=
Frame period [µs]
1
Frame rate [s]
-------------------------------------
1 000 000
×
=
Содержание A400K
Страница 1: ...Basler A400k USER S MANUAL Document Number DA00062410 Release Date 27 September 2007 ...
Страница 4: ......
Страница 25: ...Camera Interface Basler A400k 2 9 DRAFT Figure 2 5 A402k Camera Frame Grabber Interface ...
Страница 26: ...Camera Interface 2 10 Basler A400k DRAFT Figure 2 6 A403k Camera Frame Grabber Interface ...
Страница 27: ...Camera Interface Basler A400k 2 11 DRAFT Figure 2 7 A404k Camera Frame Grabber Interface ...
Страница 52: ...Camera Interface 2 36 Basler A400k DRAFT ...
Страница 154: ...Configuring the Camera 4 54 Basler A400k DRAFT ...
Страница 168: ...Troubleshooting 6 10 Basler A400k DRAFT ...
Страница 172: ...Feedback iv Basler A400k DRAFT ...
Страница 176: ...Index viii Basler A400k DRAFT ...