0.6v drop in signal between buffer/screen refresh?!

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FioranoCars
TwoWaves
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0.6v drop in signal between buffer/screen refresh?!

Post by FioranoCars »

Reviewing a 100 odd buffer capture of A/C ripple showing loaded/unloaded and idle verse 3,000rpm to confirm the alternator was performing well under load as well as normal conditions and noticed that between buffers 32-33 that the signal of 1 channel (chC) dropped by 0.6 better the 2 pages, no other changes, just a "drop" and the trace was missing for 0.5ms on that channel and missing for 0.3ms on ChA and B.

Saved the full trace and then just buffers 31-32 to see if there was some refresh issue or glitch due to file size etc, but the same identical issue is shown in the smaller file (attached):
buffer 31
buffer 31
buffer32 - missing 0.5ms on chC and 0.3ms of A and B
buffer32 - missing 0.5ms on chC and 0.3ms of A and B
Zoom into original full file, shows screen redraw lacks 0.25ms of Channel B and 0.5ms of Channel C !!
Zoom of buffer 57 shows chC starts at 0.5ms and ChB at 0.25ms
Zoom of buffer 57 shows chC starts at 0.5ms and ChB at 0.25ms
Can't recall ever seeing something like this! Psdata file for 31-32 and the full file attached.

Thanks
Richard Lukins
Attachments
alternator ripple test-all buffers.psdata
(9.11 MiB) Downloaded 473 times
alternator ripple test2 p31-32.psdata
(214.45 KiB) Downloaded 439 times

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