Hello Magnus, I think we are not anymore in line with the subject line, but this device I want to build is to replace the not existing interval counter for some measurement tasks I want to solve.
On Sun, 16 Oct 2005 02:24:32 +0200 (CEST), Magnus Danielson wrote: >From: "Arnold Tibus" <[EMAIL PROTECTED]> >Subject: Re: [time-nuts] Question concerning failure and value of HP 5371A >Date: Sun, 16 Oct 2005 01:36:51 +0200 >Message-ID: <[EMAIL PROTECTED]> >Hi Arnold, >.... >Are you aquanted with the term analog interpolators? Basically they try to >measure the time-difference between the counting-clock edges and the start/stop >trigger edge. >However, I have yeat to understand what you are really after. There is many >ways to skin a cat, but maybe if I knew what type of cat you are looking to >skin I might give some more ideas on what to do... >.... Magnus, it is easy to tell what I want (but propably hard to realize): I want to count, as precise as possible, a gated pulse train. The number of the pulses will be the measure for the width of the gate and its variations, which is opened and closed by separate start / stop signal edges. Obviously, the shorter the pulses the better the resolution, the more precise will be the absolute value. This circuit I want to use shall be useful to determine the time difference between two signal edges and to determine a possible drift and jitter between both signals. The generation of the necessary pulses with 100 MHz to 500 MHz seem not to be that problem, I got good ideas from existing commercial circuit. But for the gate and the counter I have not found stardard circuits or ICs. The problem are the very short rise and fall times and high repetition/ clock rates. regards Arnold _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
