Photron FASTCAM Multi, Hardware Manual

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Chapter 4 Functions
48
4.10. Built-in DAQ (2ch)
This product supports the optional MCDL (Analog Waveform Sync Recording Unit).
You can record the input waveform data (analog 2ch) by sampling it and synchronizing with the
image.
The recorded data can be played back as a waveform image with the PFV.
Analog input specifications
Input specifications Non-insulated
Input method Single end
Input impedance
50
Ω
Input voltage range
Switch between the ranges of Vpp
＝
16V(
±
8V), 8V(
±
4V),
4V(
±
2V)
Maximum input rating
V
＝±
10V
(however, it is clamped to the input range [Vpp=16V, 8V, 4V])
Conversion speed 2.2Msps
Resolution AD 12-bit
Cutoff frequency
1MH
ｚ
Number of data recordings 10 points per image (10 points per 1V)
Sampling
The sampling rate is 10 times the frame rate.
The sample timing is the period for each frame rate equally divided by 10.

If the frequency of the synchronization signal is changed while using external synchronization, the
sample timing cannot follow the synchronization signal.

Waveform data cannot be recorded for the image when the number of random images is set to 1 in
random trigger mode.

The waveform data for the recording end frame is shown as 0V on the PFV waveform graph.
Image data
Waveform
data
Start recording End recording
Waveform data cannot be recorded
for the end recording frame.