Trigger hold off

Post your LabVIEW discussions here
Post Reply
ulek
Newbie
Posts: 0
Joined: Tue May 28, 2013 8:52 am

Trigger hold off

Post by ulek »

Hey,

Does the picoscope have something called trigger holdoff and how would I go about doing it in Labview.

Without the trigger holdoff the signal that I measure has a lot of jitter and is hard to get any measurements out of it.

Martyn
Site Admin
Site Admin
Posts: 4483
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

Re: Trigger hold off

Post by Martyn »

Picoscopes do not have a trigger holdoff feature.

What is the exact nature of the signal, it may be possible to set up an advanced trigger that will perform a similar function to holdoff. If you post a psdata file, File->SaveCurrentWaveform, we can take a look.
Martyn
Technical Support Manager

ulek
Newbie
Posts: 0
Joined: Tue May 28, 2013 8:52 am

Re: Trigger hold off

Post by ulek »

Hey,
Attached,
This is pulsed operation since it exaggerates the problem,
On the picoscope software I can get it to be stable but not in labview whatever trigger type or levels I use.
Also the trigger levels should be as low as possible since this wave form will be changing(the amplitude and possibly the duty ration, not the frequency)
Attachments
20130726-0001.psdata
(13.6 KiB) Downloaded 497 times

Martyn
Site Admin
Site Admin
Posts: 4483
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

Re: Trigger hold off

Post by Martyn »

It should be possible to trigger in Labview with this signal, it looks clean enough, and as you say Picoscope 6 copes with a simple rising edge trigger.

Your issue may be that you need to add some hysteresis when you set the trigger, we use 2560 in our console examples.
Martyn
Technical Support Manager

Post Reply