[volt-nuts] volt-nuts Digest, Vol 4, Issue 10
scrimgap at blueyonder.co.uk
Wed Dec 2 02:34:20 UTC 2009
Thanks for the replies.
I'm not certain industry would have followed my concept even if it works.
What they like is something that's dirt cheap to produce and sells for a
However I think I may still be wasting my time as I'm now thinking the
difficult part is testing a new reference over years to qualify its
performance. For a start you need to compare it to a very reliable reference
and I don't have one (I'm aware of the Josephson standard)...
Even if I build several refernces and note over time that they stay in close
agreement I can't tell if they're very low drift or just all drifting
together. Really each reference needs to be as independant as possible,
right down to their design. Then hopefully the chance of each reference
drifting just like all the others will be very low. It's all statistics in
the end. Oh well...
I've spotted these on eBay, but I'm suspicious about their quality and
anyway you have to add the other ultra precise components :
More information about the volt-nuts