[time-nuts] Measurement resolution to be improved
timeok at timeok.it
timeok at timeok.it
Sun Aug 2 07:18:01 UTC 2015
Hi,
For the measurement of Allan Deviation my configuration consists of a HP53132A and TIMELAB.
I verified that the best resolution is using the universal counter as a frequency counter.
Using the time interval counter with 1 PPS input is definitely has a more precise measurement but the resolution collapses dramatically making useless measurements on DUT with good/excellent stability.
I tried to use the Dual Mixer Time Difference but the Phase Wrap is very difficult to manage during the measurements and so I abandoned the project.
I have no specific experience but it seems to me that a good solution is the one applied in the A7 Quartzlock, very expensive machine and hard to find used in hobbyist prices.
I'd like to find a solution that would allow me to improve a hundred times or more the resolution that I currently have with my setup without sacrificing TIMELAB.
The question I ask you is this: is there a solution to this problem with features want from me with costs under 1500 dollars/euros?
Luciano
timeok
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