Search found 7 matches

by joshua_morris
Thu Jun 13, 2019 3:33 pm
Forum: MATLAB
Topic: Error code: 37 on getBlockData
Replies: 1
Views: 4708

Error code: 37 on getBlockData

I am trying to automate the collection of many signals with a PicoScope 4444 using MATLAB. The scope is setup to step through a range of frequencies and trigger at each step. The collected signals are 6ms long with 300kS using all 4 channels. I had formerly been able to complete my full frequency sw...
by joshua_morris
Wed Jun 12, 2019 2:50 pm
Forum: PicoScope 6 for Windows
Topic: Cross talk after changing Picoscope models
Replies: 4
Views: 3662

Re: Cross talk after changing Picoscope models

Just noticed that I never updated this post. For anyone with a similar issue, switching to the TA299 adapters resolved the cross talk that I was seeing. Everything has been running well for the past few months. Thanks Martyn.
by joshua_morris
Fri Oct 19, 2018 1:46 pm
Forum: PicoScope 6 for Windows
Topic: Cross talk after changing Picoscope models
Replies: 4
Views: 3662

Re: Cross talk after changing Picoscope models

I am using the TA271 single BNC adapters which we bought from Picoscope. Is the D-sub on the 4444 scope/adapter grounded differently than the BNC connector on the 3425? The 3425 says that it has differential channels so I would assume it looks similar to the BNC side of the drawings you shared.
by joshua_morris
Thu Oct 18, 2018 9:53 pm
Forum: PicoScope 6 for Windows
Topic: Cross talk after changing Picoscope models
Replies: 4
Views: 3662

Cross talk after changing Picoscope models

Hello all. I have been using a Picoscope 3425 for some time now and recently picked up a Picoscope 4444. I am trying to conduct the same test on the 4444 that I have always done with the 3425 and am getting some different results. Essentially I have 4 pairs of strain gauges connected to the scope th...
by joshua_morris
Tue Nov 21, 2017 8:05 pm
Forum: PicoScope 6 for Windows
Topic: Trigger at second falling edge, not the first
Replies: 5
Views: 5402

Re: Trigger at second falling edge, not the first

I tried a few more tests this afternoon and a higher trigger level seems to be working. I was doing some lighter impact tests today so I used -30mV and -20mV instead of -40mV, but they all triggered at the first downward slope as desired. I guess the -3mV I had been using before was too conservative...
by joshua_morris
Fri Nov 17, 2017 5:22 pm
Forum: PicoScope 6 for Windows
Topic: Trigger at second falling edge, not the first
Replies: 5
Views: 5402

Re: Trigger at second falling edge, not the first

Hello and thanks for your replies. I apologize for my very late response. I had been expecting an email notification about replies and had not logged back in until now to manually check. I'll be more vigilant now. Martyn, I am feeding in a continuous signal so I think there is plenty of signal for t...
by joshua_morris
Wed Nov 08, 2017 5:46 pm
Forum: PicoScope 6 for Windows
Topic: Trigger at second falling edge, not the first
Replies: 5
Views: 5402

Trigger at second falling edge, not the first

Hello. I did a quick search of the forum and couldn't find a similar thread. I am using PicoScope 6 software with my USB PicoScope 3425 to collect impact signals from strain gauges. I have been using this configuration for a over a year and have new issue with the trigger. I would like to trigger my...