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8.10
Exposure Phase Shift Recording
Use this method for high reshigh speed recording using multiple HX, GX and Q cameras.
Applies to telephoto recording where the parallax generated can be ignored, depending on the
location of the cameras.
For example, recording at 10000pps with the GX-1 with a frame size of 512x384 is possible but at
20000pps, a frame size of 512x384 is not possible.
However, sync two GX cameras and set the exposure phase for one camera to 180° and record
while matching the focal axis to obtain data from two cameras with a frame size of 512x384 that is
equivalent to 20000pps.
■Precautions for Exposure Phase Shift Recording
・
With the exception of the exposure phase, all of the camera settings used for exposure phase
shift recording are identical.
・
Make the exposure timing setting GX native.
・
Make the absolute frame time the exposure center time.
・
Use IRIG signals or the GX-HUB to sync all of the cameras.
・
Set the sync signals to internal synchronization. The exposure phase shift function does not
work with external synchronization (EST).
■ Procedures for Settings for Exposure Phase Shift Recording
(1) Sync Settings (Options/Camera Connection Settings)
Set the Qcam, HX, GX camera time to GX-HUB time if using the GX-HUB without IRIG
signals.
Set the Qcam, HX, GX camera time to IRIG and M-HUB time if using IRIG signals.
Set the Qcam, HX, GX cameras to internal synchronization.
(2) Exposure Timing (Options/Camera Connection Settings)
Set the Qcam, HX, GX exposure timing to GX native.
(3) Camera Frame Time (Options/Camera Connection Settings)
Select the exposure time with the absolute frame time.
(4) Connect Cameras with HXLink
(5) Exposure Phase for Recording Parameters (Camera Details or List of Camera Settings)
Click “Detailed Settings” to open the window for “List of Camera Settings” and set the
exposure phase for the recording parameters to each of the cameras. Settings other than
exposure phase are common for all of the cameras.
Summary of Contents for SP-642
Page 1: ...800292 0H Oct 2015 User s Manual DigitalHighSpeed HXLink SP 642 ...
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Page 19: ... 00292 H 1 1 1 Overview ...
Page 25: ... 00292 H 2 1 2 Installation ...
Page 49: ... 00292 H 3 1 3 Basic Operations ...
Page 77: ... 00292 H 4 1 4 Camera Operation ...
Page 106: ...4 30 00292 H Q series Detail Settings dialog ...
Page 179: ... 00292 H 5 1 5 File Operation ...
Page 221: ... 00292 H 6 1 6 Camera Connection Settings ...
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Page 239: ... 00292 H 7 1 7 Setting Options ...
Page 263: ... 00292 H 8 1 8 Settings for the Recording Methods ...
Page 295: ... 00292 H 9 1 9 Menus ...
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Page 309: ... 00292 H 10 1 10 System Settings HXUtility ...
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Page 327: ... 00292 H 11 1 11 Batch Conversion of Files Batch Conversion Software ...
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Page 341: ... 00292 H 12 1 12 Auto Pilot ...
Page 357: ... 00292 H 13 1 13 Measurement Functions ...
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Page 385: ... 00292 H 14 1 14 Troubleshooting ...
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Page 401: ... 00292 H 15 1 15 Specifications ...
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Page 405: ... 00292 H A 1 Appendix A ...
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Page 409: ... 00292 H B 1 Appendix B ...
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Page 419: ... 00292 H D 1 Appendix D ...
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