Risetime measurement on Rigol DS1052E

[janengelbrecht]

Just to be 100% sure: Does the Rigol DS1052E measure risetime the normal way 10% and 90% of the step height ?
This frame seems to indicate so....but if you intelligent guys could confirm it...im a happy man
http://janengelbrechtpedersen.dk/risetime.png

[tautech]

I see 4.28 uS in red in the bottom right corner and that looks right to me from the trace seen on screen.
(thinking back to the days when I had a CRO and NO luxury of on-screen measurements)

[janengelbrecht]

Rise(1)=2.900uS 
|dX|=2.960uS

What the number in red at the bottom means ? no clue ? From 0% to 100% ?

[SL4P]

The image I'm seeing doesn't have a red value at bottom RH ??
The T-> 4.280us text indicates the trigger time...?
Is that what you're asking.
See the orange T symbol at the top-left... that's the Trigger marker, and the number at bottom RH is simply that horizontal 'trigger' time position wrt the trace start at 'zero'.

[janengelbrecht]

Well thx for reply...now i get the number in the right corner... still not totally shure if the RIgol meassure rise time from 10% to 90% it writes : Rise(1)=2.900uS and i can see it matches my 10% to 90% meassurement...so ok...lets say it does

[rollatorwieltje]

http://www.rigol.com/download/Oversea/DS/User_guide/DS1000E%28D%29_UserGuide_EN.pdf

page 124 in this PDF.

[janengelbrecht]

Thx   Empty page

[jancumps]

Thx   Empty page

It says:

Rise Time: Time that the leading edge of the first pulse in the waveform takes to rise from 10% to 90% of its amplitude.

[markce]

Checked this against a Tek scope.
Rigol DS1052E rise-time measurement is 10%-90% time of leading-edge.
Confirmed with real test setup.

I've been quite happy with pulse measurements on the small Rigol.

[i4004]

Just to be 100% sure: Does the Rigol DS1052E measure risetime the normal way 10% and 90% of the step height ?
This frame seems to indicate so....but if you intelligent guys could confirm it...im a happy man
http://janengelbrechtpedersen.dk/risetime.png

depends on the signal you're measuring, if it has some jitter then rise time will be more of an aproximation than precise value....you'll see it (auto mode) struggling with finding correct amplitude(s)/ie rise time.

if in your case it's pretty still and non moving much, it should be correct.