Figure 1 shows the LabNotebook dialog box. The Flashback button will recall the oscilloscope setup and all traces stored at the time the LabNotebook entry was created.

Figure 1:

The Flashback button in the LabNotebook dialog box is used to recall traces and setups from the LabNotebook Database

Figure 2 shows a typical result of using Flashback. Waveforms are recalled into the original source trace and the acquisition mode is switched to stop.

Figure 2:

The result of pressing the Flashback button

The oscilloscope setup is also recalled so the entire state of the oscilloscope is returned to the way it was when the LabNotebook entry was created.

If you need to process or analyze data from multiple acquisitions you can combine LabNotebook with sequence-mode acquisition. Sequence mode segments the acquisition memory and saves multiple acquisitions in the memory. If you store sequence-mode data using LabNotebook, multiple acquisitions can be recalled using Flashback. This allows use of analysis techniques such as persistence displays and histograms, which show the history of multiple waveforms.

Figure 3 shows a width measurement being made on 20 segments of a sequence-mode acquisition recalled using Flashback. The multiple acquisitions are displayed individually using the mosaic display mode for sequence waveforms.

Figure 3:

Overshoot being measured on a Flashback of a 20-segment sequence-mode acquisition

The same technique can be applied if you need to view persistence displays of multiple acquisitions from a recalled waveform. This is shown in Figure 4. In this example, 1000 segments of a trace exhibiting some width modulation were acquired and saved in a LabNotebook entry. After a Flashback recall, the sequence-mode trace was displayed in color persistence mode to show a waveform history over the full 1000 acquisitions.

Figure 4:

Display of a 1000 segment sequence shown in overlay mode with color-graded persistence after Flashback

Flashback is a unique tool within LabNotebook that gives you an easy way to store multiple waveforms and setups with a single button push. This data can be shared with multiple users or archived for later analysis.

LabNotebook is standard with all Teledyne LeCroy Windows-based oscilloscopes.