The Multiple Replay option allows a series of signals to be generated without restarting the UltraFast board. Each output is started on receipt of a trigger event. This can be used to generate a series of high-speed waveforms at a very high repetition rate, such as RADAR, Lidar or spectroscopy signals.
The user prepares the measurement by defining the number of signals that need to be generated. The onboard signal memory is then divided into the same number of memory segments that are the same size as each signal to be recorded. Each segment must be the same length. Each memory segment is then filled with the signals to be generated.
When a trigger event is detected, the signal generation starts and the data is
automatically transferred from the next available segment. Special onboard hardware
then automatically re-arms the trigger ready for the next trigger event to occur.
The dead time between the end of replaying one segment and the next output, is
typically only a few samples - potentially thousands of waveforms can be generated
in a second.
Pretrigger is not available when using Multiple Replay.
Multiple Replay can be combined with the Time Stamp option so that the trigger
events times are recorded.
This option is compatible with the following boards:
- UF6000 14-bit Arbitrary Waveform Generator analog output boards
- UF6100 8-bit Arbitrary Waveform Generator analog output boards
- UF7000 Digital I/O boards
See also:
- Multiple
Recording
- Time Stamp
- Gated Sampling