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AM-800CL / AB-800CL
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7.9. PIV(Particle Image Velocimetry)
The Particle Image Velocimetry mode can be used in applications where 2 images should 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 58.73ms. Then, the second exposure
will be taken. The accumulation is LVAL asynchronization. The first strobe is activated in
the first exposure duration and the scond strobe is taken during the first frame being
readout. In this way, two strobe lights take two video outputs.
The frame rate for full pixels readout is 8.5fps for both AM-800CL and AB-800CL.
Primary Settings
Exposure mode : Timed
PIV control : ON
Trigger mode:
TM=1 (ON)
Exposure
External Trigger
EEN
FVAL
DVAL
td
te1
ift
te2 tframe1
tframe2
4LVAL
Fig.35 PIV mode
7.10. Operation and function matrix
Operation
mode
Exposure
control
Expsoure
auto
Binning
AOI
Auto Iris
output
Overlap
Note
Continuous
○
○
○
○
○
---
Timed (EPS)
○
×
○
○
×
○
Trigger
width(PWC)
---
×
○
○
×
○
Trigger Dump
(RCT)
○
○
○
○
○
OFF
JAI_PIV
○
×
○
○
×
OFF
Exposure
Sequence
○
×
○
○
×
OFF
time name
description
time
td
Exposure beginning delay
5us
te1
First exposure time period
10us
~
58.73ms
te2
Second exposure time
58.73ms max
itf
Inter framing time
7.9us
tframe1
First Frame read out
58.73ms max
tframe2
Second Frame read out
58.73ms max