Filter
Top Products
Chapter 6 Advanced Topics 91
NOT SCAN Signal
Shutter
opening
time
Shutter
closing
time
Readout
START ACQUIRE command from the software issent automatically
when ACQUIRE or FOCUS is clicked on in the software.
Exposure
Shift
SHUTTER Signal
START ACQUIRE
Figure 46. Free Run Timing Diagram
Single Trigger
Single Trigger Kinetics mode takes an entire series of images with each External Trigger
Pulse (applied at the Ext. Sy
nc BNC on the control board of the ST-133). After the series is
complete the shutter closes and the CCD is read out at normal speeds. Once the readout is
complete the camera is ready for the next series of exposures. This timing is shown in
Figure 47, where a single External trigger pulse is used to collect a burst of 6 frames.
NOT SCAN Signal
Shutter
opening
time
Shutter
closing
time
Readout
START ACQUIRE command from the software issent automatically
when ACQUIRE or FOCUS is clicked on in the software.
External Trigger
Exposure
Shift
SHUTTER Signal
START ACQUIRE
Figure 47. Single Trigger Timing Diagram
Multiple Trigger
Multiple Trigger Kinetics mode takes a single im
age in the series for each External Sync
pulse received by the controller. Once the series is complete the shutter closes and
readout begins. Since the shutter is open during the entire series of images, if the External
Sync pulses are irregularly spaced then the exposures will be of different lengths. Once
the series has been read out the camera is ready for the next series. This timing is shown
in
Figure 48, where a series of 6 frames is collected with 6 External Sync pulses.