ALLIED Vision Technologies Oscar F-810 - Manual (Page 136)

Video formats, modes and bandwidth
OSCAR Technical Manual V2.4.0
136
Oscar F-320C: AOI frame rates
Frame rates differ for the progressive scan mode and the field read out (or
interlaced) mode.
Oscar F-320C: progressive scan mode
For progressive scan mode (i.e. fixed formats and Format_7, Mode_2), the
following formula applies:
Formula 6: Frame rate calculation progressive scan mode Oscar F-320C
AOI height T
frame
/ s Frame rate / fps
254 0.025 39.679
240 0.024 41.796
120 0.013 77.032
60 0.008 133.163
30 0.005 209.486
Table 55: Frame rates progressive Oscar F-320C
Figure 56: Graph of frame rates in progressive scan mode Oscar F-320C
frame rate
1
T
Ch eTrans arg
T
Dummy
T
Dump
T
Scan
+ + +
----------------------------------------------------------------------------------------------- =
frame rate
1
290µs 257 AOI_HEIGHT – ( ) x 6.8µs AOI_HEIGHT 98µs × + +
----------------------------------------------------------------------------------------------------------------------------------------------------- =
Frame rate = f(AOI height)
0
20
40
60
80
100
120
140
160
180
200
220
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280
AOI height / pixel
Fr
a
m
e
r
a
te
/
f
p
s
OF-320C Progressive (Format_7 Mode_2 and all fixed modes)