Search found 6 matches

by masch
Thu Feb 07, 2013 8:24 am
Forum: USB PC Oscilloscopes
Topic: Waveform display in analog persistance mode
Replies: 13
Views: 307314

Re: Waveform display in analog persistance mode

Thanks for supplying the image of the video waveform.

When using the single-shot mode, wouldn't it be possible to use the information of the rise time (dy/dt of the signal) as a replacement for the frequency? That would be the way an analog oscilloscope phosphor screen works.
by masch
Tue Jan 15, 2013 6:06 pm
Forum: USB PC Oscilloscopes
Topic: Waveform display in analog persistance mode
Replies: 13
Views: 307314

Re: Waveform display in analog persistance mode

1250 samples per waveform seems indeed a bit low.

Doesnt that mean when i capture a signal at a timebase of maybe 100 µs/div (10 divisions total) i get a samplerate of just 1.25 million samples per second which leads to a effective Bandwidth of only 125 kHz?
by masch
Tue Jan 15, 2013 8:23 am
Forum: USB PC Oscilloscopes
Topic: Waveform display in analog persistance mode
Replies: 13
Views: 307314

Re: Waveform display in analog persistance mode

When you say the number of samples in persistence mode is limited, what is the actual number of samples used?
by masch
Sun Jan 13, 2013 6:18 pm
Forum: USB PC Oscilloscopes
Topic: Waveform display in analog persistance mode
Replies: 13
Views: 307314

Re: Waveform display in analog persistance mode

So for the 6000 series the trigger rearm time can be less than 1µs. When viewing a signal at a timebase of 100ns per division, does it mean i get a waveform update rate of 500.000 waveforms per second on sreen? In persistence mode, is it possible to change the memory depth? if not, how many samples ...
by masch
Thu Jan 03, 2013 10:31 am
Forum: USB PC Oscilloscopes
Topic: Waveform display in analog persistance mode
Replies: 13
Views: 307314

Re: Waveform display in analog persistance mode

Hello, i have already watched this video. The video only shows the analog intensity mode with the decay time set to 5s. For me it would be intresting to see for example an ampitude modulated sine wave with the decay time set to maybe 100ms. The video also doesen't answer the question about the wavef...
by masch
Tue Jan 01, 2013 3:29 pm
Forum: USB PC Oscilloscopes
Topic: Waveform display in analog persistance mode
Replies: 13
Views: 307314

Waveform display in analog persistance mode

Hello, the oscilloscope i currently use is a Tek TDS3014. A big disadvantage of this scope is its very small memory with only 10k points. The picoscopes are very intresting to me, especially the 6000 series. But since the Tek is a digital phosphor oscilloscope that tries to emulate the look of an an...