spikes in triangle from functiongenerator of Picoscope 4262

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egonotto
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Joined: Thu Mar 12, 2015 12:42 am

spikes in triangle from functiongenerator of Picoscope 4262

Post by egonotto » Mon Apr 25, 2016 11:45 pm

Hello,

since few days i have an used Picoscope 4262. It almost as new beside it has only 3 legs :).

I try the build in functiongenerator and see a strange behavior of the triangle waveform. Sometimes there are spikes.

Insofar i know, this spikes comes not on sine wave and comes not on arbitrary wave.

Therefore this is only a dispensable problem.
Perhaps it is an exercise in advanced trigger :)


Kind regards
egonotto

PS:

PicoScope® 6 - PC Oscilloscope software version: 6.11.12.1692
Copyright © 1995-2016, Pico Technology Ltd.

Model: PicoScope 4262

USB Version: 2,0
Calibration Date: Montag, 3. November 2014
Hardware Version: 1
Driver Version: 1.2.6.4
Firmware Version: 1.0.5.0 / 1.1.4.0
Attachments
spikes_in_triangle.jpg
Spikes in triangle
trigger.jpg
Trigger settings

Hitesh
Site Admin
Site Admin
Posts: 2845
Joined: Tue May 31, 2011 3:43 pm
Location: St. Neots, Cambridgeshire

Re: spikes in triangle from functiongenerator of Picoscope 4

Post by Hitesh » Fri Apr 29, 2016 9:00 am

Hi egonotto,

I have been able to reproduce the issue here and have reported it to the Development Team for investigation.

I tested with both PicoScope 6.11.12.1692 and PicoScope 6 Beta 6.12.1.1691 and found that after a few captures the spikes will disappear unless you change any signal generator settings.

Regards,
Hitesh

Technical Support Engineer

egonotto
Newbie
Posts: 0
Joined: Thu Mar 12, 2015 12:42 am

Re: spikes in triangle from functiongenerator of Picoscope 4

Post by egonotto » Sun May 01, 2016 7:12 am

Hi Hitesh,

thanks for your answer.

My 4262 has the spikes in triangle on and off also after hours.

But it is not fatal, for one can use the arbitrary mode to get an
undisturbed triangel signal

Best regards

egonotto

Hitesh
Site Admin
Site Admin
Posts: 2845
Joined: Tue May 31, 2011 3:43 pm
Location: St. Neots, Cambridgeshire

Re: spikes in triangle from functiongenerator of Picoscope 4

Post by Hitesh » Tue May 03, 2016 8:26 am

Hi egonotto,

The issue has been fixed and should be available via the next release of the PicoScope 6 Beta software.

Regards,
Hitesh

Technical Support Engineer

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