Test and Measurement Forum

I use my pico scope 2203 to check the position of a sensor signal (ChA) in relation to a reading window (ChB).
The idea was to collect the data in continuous streaming mode while the machine is running (time base = 1sec/div).
At the end of a test sequence it should be possible to analyze the stored data.
This is not possible, because between the sampled pages is a time gap.
Is there a possibility to make the continuous stream continuous ?

Hi,
In Streaming mode the limitation is in Picoscope6 which limits the maximum number of samples per screen to 2MS. The input signal does not use the Scope buffer memory at all, the data is sent directly over the USB connection into the PC buffer memory (RAM). The downside of using a large (2MS) screen size is that it takes just over 1 second to transfer to PC RAM, thus there is that gap in the recorded data.
All data, in both block mode & streaming mode is saved to PC RAM only during recording and can only be saved to Hard Drive after recording has stopped. If you wrote your own application using our software development kit just to capture at 1MS/s you would be able to stream continuously.
Please contact again if you need more information.
Regards,
PeterF.

Hi,

I am interested in doing something similar to this.

Could you post info about your SDK?

Thanks

Hi

The SDK can be downloaded via http://www.picotech.com/software.html

The programmer's guide is available here: http://www.picotech.com/document/pdf/ps2000pg.en-3.pdf

HTH

Robin

Hi,
I have a similar issue. I need a measurement (Voltage over time) about ~ 10 seconds with 200ms/Div. That measn I have 5 pages or more. When I check the measurement in detail then the graph starts on page 2 not at the same value where it ends on page 1. Some data were lost between the pages. According to the hint above I have changed the sample rate to different lower values, but the datas will not be recorded continuously. The only possibilty for me is to adjust the time/div setting, but then the graph is too much compressed.
Is it feasible to solve this issue?

best regards

Daniel

I notice the same issue when i try to track a continuous 5 second signal with my PICO2208.

I try to use low sampling rate but seem the problem does not solve.

If I cant have a continuos screen of the signal,what for I buy this the USB scope?

If you set CollectionTime to 500ms/div, enable a repeat trigger, set the pre trigger to 100%, and move the trigger so that it never fires you will get a continuous 5s scrolling display.