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determining pulse width

Question asked by VRFuser on Jun 8, 1998
We are using the DAS 1602/12 and measuring duty cycle among other things.
1) We filter the raw data through the "clip data" filter (functions) so you
get all the data converted into clean 0s and 1s. This makes things much
2) Then we run a loop through the data and look for rising and falling edges
and write down the indexes when this happens.
    This is done by a "formula" if a[i]>a[i-1] and a[i]<a[i-1] formula. We
check only the first ocurrence of this.
3) After that you have to multiply the delta between contiguous fall and
rise indexes by the sampling  frequency that you selected (20000 KS/s) .

If you need a small example let me know

David J (
-----Original Message-----
From: Ron Desgroseilliers <>
To: 'VRF reflector' <>
Date:  ,  09, 1998 00:03
Subject: determining pulse width

>Does anyone have a good way of determining the width of pulses? I'm using
>Computer Board's DAS 1600  to monitor signals (if that matters).