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Manipulate and export data from ViVa

BaaB

I have two signals as in the picture below.

I would like to measure some information and export them to a table or a file something like this:

Pulse width     fall time

614n                738n

696n                686n

581n                660n

660n                672n

  ...                     ...

I am wondering if there is a way to do that. It would be a great help. Otherwise, I have to do it manually with hundreds points.

Thank you.

Parents

  • I think you could do this with the dutyCycle and fallTime functions in the calculator. Both allow you to generate the value versus cycle number. For the duty cycle, you'd need to divide by 100 and multiply by the period to get the actual pulse width. For fallTime, it normally does it 10 to 90% rather than peak to peak - mainly because the peak may not be precisely in the same place - so you could probably just measure the 10% to 90% fallTime and then multiply by 1.25 to get the peak to peak value?

    If you can generate both expressions in the calculator, you can then send each to a table (using the table button in the calculator) and then you'll have both sets of results.

    Something like that (I very quickly tried it out with some made up data and it seemed a reasonable approach). I'll leave the details to you as it will depend on your data and precisely what you're trying to measure.

    Andrew.

Reply

  • I think you could do this with the dutyCycle and fallTime functions in the calculator. Both allow you to generate the value versus cycle number. For the duty cycle, you'd need to divide by 100 and multiply by the period to get the actual pulse width. For fallTime, it normally does it 10 to 90% rather than peak to peak - mainly because the peak may not be precisely in the same place - so you could probably just measure the 10% to 90% fallTime and then multiply by 1.25 to get the peak to peak value?

    If you can generate both expressions in the calculator, you can then send each to a table (using the table button in the calculator) and then you'll have both sets of results.

    Something like that (I very quickly tried it out with some made up data and it seemed a reasonable approach). I'll leave the details to you as it will depend on your data and precisely what you're trying to measure.

    Andrew.

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