Test and Measurement Forum

Problems when using the math channels

Forum for discussing PicoScope version 6 (non-automotive version)

Problems when using the math channels

Postby ansie » Thu May 15, 2014 7:18 pm

Hello,
I am currently working with a PicoScope 3425 oscilloscope with PicoScope 6.8.11.20.
It's a great tool and I think I could buy a smaller one for hobby use.
But when using the math channels, I had some problems with creating of equations and the resulting waveforms.
Even in demo mode only with channel A.
Are there problems with PicoScope 6 or have I used the wizard not properly maybe?
Regards,
ansie.

Examples:

The decimal point of the picoscope-numblock doesn't work, it has to be entered by keyboard:
002.PNG

The multiplication A*2,5 seems to work, but the waveform is not what I expected:
003.PNG

The divison A/2,5 seems to work, but the the waveform is not what I expected:
005.PNG

The divison A/0,5 seems to work, but there is no waveform:
006.PNG

The divison A/sqrt(2) doesn't work:
007.PNG

The multiplication A*0,7071 seems to work, but the waveform is a constant 0 line:
008.PNG


-
ansie
Newbie
 
Posts: 0
Joined: Thu May 15, 2014 12:22 pm

Re: Problems when using the math channels

Postby aarne » Fri May 16, 2014 8:04 am

Maybe try A*2.5 (dot/point, not a comma).
aarne
Newbie
 
Posts: 0
Joined: Sat Dec 04, 2010 11:34 am

Re: Problems when using the math channels

Postby ansie » Fri May 16, 2014 1:00 pm

Hello,
I've tried it also with a decimal-point, but PicoScope 6 then shows the red error indicator to the right of the equation box which means there exist a syntax error.

010.PNG


I suspect there might be a problem of PicoScope 6 with different possible regions settings of windows.


-
ansie
Newbie
 
Posts: 0
Joined: Thu May 15, 2014 12:22 pm

Re: Problems when using the math channels

Postby ansie » Fri May 16, 2014 2:33 pm

After a test-change of the decimal separator from comma to point via Windows-System-Properties (German XP and Win7) PicoScope 6 accepts both, comma or point, in equations (e.g. A*2,5 or A*2.5) !
The waveform with point in it's equation is now fine,
the waveform with comma in it's equation is still drawn strange.

011.PNG


Changing of the Windows-System-Properties before use of PicoScope is not very useful.
So I hope very much that the software developers solve this behaviour of PicoScope 6 in further releases.
I reported the issue via the feedback function of PicoScope.


-
ansie
Newbie
 
Posts: 0
Joined: Thu May 15, 2014 12:22 pm

Re: Problems when using the math channels

Postby Hitesh » Mon May 19, 2014 12:45 pm

Hi ansie,

We are aware of this issue and information has been sent through to the Development Team.

A fix should be incorporated into a future release of PicoScope 6.

Best wishes,
Hitesh

Technical Specialist
Pico Technology
Hitesh
Site Admin
Site Admin
 
Posts: 1997
Joined: Tue May 31, 2011 3:43 pm
Location: St. Neots, Cambridgeshire

Re: Problems when using the math channels

Postby ansie » Sun Jan 25, 2015 1:28 pm

I realized that the problems still exist with the current PicoScope software version 6.10.11.15 :(
I hope that the problems are fixed soon with a new version.
With this hint, the problems can be prevented temporarily:
https://www.picotech.com/support/topic14379.html
Existing math channels have to be typed in again.
ansie
Newbie
 
Posts: 0
Joined: Thu May 15, 2014 12:22 pm

Re: Problems when using the math channels

Postby Hitesh » Mon Feb 02, 2015 1:18 pm

Hi ansie,

You will need to continue using a '.' for the decimal separator as this was the resolution for the bug fix.

There is a feature request for Maths Channels to support other cultures so I have added your comments to that.

Regards,
Hitesh

Technical Specialist
Pico Technology
Hitesh
Site Admin
Site Admin
 
Posts: 1997
Joined: Tue May 31, 2011 3:43 pm
Location: St. Neots, Cambridgeshire


Return to PicoScope 6 for Windows

Who is online

Users browsing this forum: No registered users and 0 guests