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Real Time operation with PS 4226

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Real Time operation with PS 4226

Postby Armin_T. » Wed Nov 24, 2010 11:57 am

Hello,
I want to use the PS 4226 with Labview on a (fast) notebook to record two periodical signals. These signals have a length of 10µs and a periodicity of 2.5ms. I have to record these 10µs signals at a high sample rate (10 MSamples/s) and it's necessary that this data is stored on the laptop within the 2.5ms.
I never used an USB-Scope before so I just want to know, if this operation is generally possible with the PS 4226. Is the communication/data transfer between the scope and a laptop fast enough?

Thank you,
Armin
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Re: Real Time operation with PS 4226

Postby ziko » Thu Nov 25, 2010 4:00 pm

It depends on how long you are to measure for really, how many captures are you looking for?
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Re: Real Time operation with PS 4226

Postby Armin_T. » Thu Nov 25, 2010 4:14 pm

I need to measure for 10 µs (with 10 MSamples/s -> 100 Points) and the next 2.49 ms is nothing to measure. Within these 2.49 ms the 200 Sampled Points (100 each channel) should be transfered on the notebook. So the data aquisition is only 10 µs of 2.5 ms.
Last edited by Armin_T. on Thu Nov 25, 2010 4:21 pm, edited 1 time in total.
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Re: Real Time operation with PS 4226

Postby ziko » Thu Nov 25, 2010 4:19 pm

Yes but how many times do you want to do this?
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Re: Real Time operation with PS 4226

Postby Armin_T. » Thu Nov 25, 2010 4:24 pm

This has to run for 15 month all the time :)
I know its a lot of aquired data, but that should be no problem for the scope, only for the HDD of the notebook.
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Re: Real Time operation with PS 4226

Postby Armin_T. » Thu Nov 25, 2010 4:42 pm

The point is, I need a kind of "real time" operation. My program will need the measured data of every 10 µs Pulse on the notebook before the next Pulse (2.5 ms later) arrives.
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Re: Real Time operation with PS 4226

Postby ziko » Thu Dec 23, 2010 11:12 am

Just looking through some old forum posts and I seemed to have missed this one out. However the answer as you may have figured out by now this is really beyond the devices capabilities. This is mainly due to the fact you want to do this for 15 months. Writing your own software may get you further though.
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