Products > Test Equipment
New Rigol DS1054Z oscilloscope
<< < (954/966) > >>
RoGeorge:
Mine (with FW v00.04.05.SP2) has on the left side of the screen a button for 'Vrms' and one for 'Variance', but no 'AC.Vrms'.

What is 'AC.Vrms', or what's the difference between 'Vrms' and 'AC.Vrms'?
Njk:
Vrms takes into account AC+DC voltages. AC.Vrms ignores DC offset. The help info is also updated accordingly.
iMo:
That is a good fix, as the older version of Vrms does Vrms with the DC offset calculated in. Now the AC.Vrms (with DC coupling and DC offset) perhaps calculates the stddev basically.
Njk:
AC.Vrms seems working properly. Stddev is what was previously named Variance (according to its definition by the equation 6-4 in the manual. That is hinted by the tiny D letter in its icon). It's not a measured value, it's a meta data that can be displayed in the statistical information for every item. That's why it was weird to see a dedicated icon for stddev. Now it's actually removed.
Pierre_Montreal:
I have the DS1054z Software version: 00.04.05.SP2

and I am able to clear these grayed measurements  by changing the font size ! It seems that when the scope change the font size it clear the measurements and it the redraw them. Try it.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod