Trigger Operation And Timing Chart Hv-F31F - Hitachi HV-F22F Operation Manual

Trigger operation and timing chart
External trigger refer to a function for picking
up rapidly moving objects by applying a trigger
pulse input. It is possible to pick up an image
with various timing.
1. HV-F31F
(1) External trigger operating mode: Mode 0
When external trigger signal is high active,
light pulse begins at the rising edge of the
trigger signal and ends at the falling edge.
At the trigger signal falling edge, the
internal VD signal is reset and the video
data are transmitted.
41
External Trigger
minimum period = 1V
Exposure A
Flash Pulse Output
Internal VD
Internal Video
VD : 3H=126us
blank : 18 to 19H = 801us
Buffer Memory Write
DATA transfer
(YUV 16bit)
1Frame=66.6ms 15FPS
External Trigger
Internal HD
Internal VD
6 to 7H(cam) = 253 to 295us
start : 2 to 2000 us
set 556 ns step
Exposure
4.0us
Flash Pulse Output
Internal Video
Buffer Memory Write
DATA transfer
1Frame = 33.3ms 30FPS
A B C
A
Delay: 1250us
A
The highest transmission
speed: 69ms
1H(cam)=
42us
3H(cam)=126u s
Frame reset
30us
width : select 3 state
(NARROW:40us, MIDDLE:80us, WIDE:280us)
12H(cam)=506u s
Delay: 1250us
DATA transfer START: 2.1 to 4.3ms
D
A
A