JAI SP-20000C-PMCL, User Manual

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SP-20000M-PMCL / SP-20000C-PMCL
- 66 -
Table – 45 Minimum trigger interval calculation formula (Trigger Overlap = Readout) (1x2–1Y)
7.7 PIV (Particle Image Velocimetry)
The Particle Image Velocimetry mode can be used in applications where 2 images need to be
taken with a very short time interval. It can only be used with strobe flash as illumination. The
first accumulation time is 10

sec to 2 sec. Then, the second exposure will be taken. The first
strobe is activated during the first exposure duration and the second strobe is pulsed while the
first frame is being read out. In this way, two strobe flashes generate two video outputs.
Basic settings to use this mode
Trigger Mode = ON
Exposure Mode = Timed
Trigger Option = PIV
Table – 46 Minimum trigger interval (Trigger overlap = Off)
Readout Mode
Time (Min. Trigger Period)
1x8–1Y 1x4–1Y 1X2–1Y
80 MHz 60 MHz 80 MHz 60 MHz 80 MHz 60 MHz
Full
≧
63.625 ms
≧
85.394 ms
≧
126.489 ms
≧
169.807 ms
≧
252.834 ms
≧
339.472 ms
ROI Center 2/3
≧
42.677 ms
≧
57.263 ms
≧
84.592 ms
≧
113.546 ms
≧
169.041 ms
≧
226.950 ms
ROI Center 1/2
≧
32.203 ms
≧
43.198 ms
≧
63.644 ms
≧
85.416 ms
≧
127.144 ms
≧
170.688 ms
ROI Center 1/4
≧
16.492 ms
≧
22.100 ms
≧
32.221 ms
≧
43.220 ms
≧
64.299 ms
≧
88.055 ms
ROI Center 1/8
≧
8.636 ms
≧
11.551 ms
≧
16.510 ms
≧
22.122 ms
≧
32.877 ms
≧
44.110 ms
V Binning ON (Full)
(Note1)
≧
63.635 ms
≧
85.404 ms
≧
126.504 ms
≧
169.831 ms
≧
252.868 ms
≧
339.518 ms
Note 1
．
SP-20000M-PMCL only
Note 2
．
Overlap mode=Readout is not available
Camera Settings Trigger Width/ Trigger Overlap = Readout
Minimum Trigger Interval calculation formula
[Unit
：
us]
Tap
Geometry Binning
Vertical
1X2-1Y 80 MHz 1 (Off)
At the condition of [Trigger Pulse Width]
≦
[Trigger Period :us]
－
521us
(1) If [Trigger Pulse Width] is less than 1Frame
＝
ROUND(((([Height]
＋
1)×2618.54)
－
2618.54
＋
([Width]÷2))÷80MHz×10^6)+667
(2) If [Trigger Pulse Width] is more than 1Frame
＝
521
＋
[Trigger Pulse Width]
2 (On)
At the condition of [Trigger Pulse Width]
≦
[Trigger Period :us]
－
521us
(1) If [Trigger Pulse Width] is less than 1Frame
＝
ROUND(((([Height]
＋
1)×5237.09)
－
2560
＋
([Width]÷2))÷80MHz×10^6)+667
(2) If [Exposure Time] is more than 1Frame
＝
521
＋
[Trigger Pulse Width]
60 MHz 1 (Off)
At the condition of [Trigger Pulse Width]
≦
[Trigger Period :us]
－
696us
(1) If [Trigger Pulse Width] is less than 1Frame
＝
ROUND(((([Height]
＋
1)×2637.25)
－
2637.25
＋
([Width]÷2))÷60MHz×10^6)+892
(2) If [Exposure Time] is more than 1Frame
＝
696
＋
[Trigger Pulse Width]
2 (On)
At the condition of [Trigger Pulse Width]
≦
[Trigger Period :us]
－
696us
(1) If [Trigger Pulse Width] is less than 1Frame
＝
ROUND(((([Height]
＋
1)×5274.49)
－
2560
＋
([Width]÷2))÷60MHz×10^6)+892
(2) If [Exposure Time] is more than 1Frame
＝
696
＋
[Trigger Pulse Width]