[volt-nuts] Pickering Patent
frank.stellmach at freenet.de
Fri Oct 21 20:07:14 UTC 2011
the "degaussing" technique by Pickering (for former Metron Corp.) is
used in the Fluke 7000 reference, which is based on the LTZ1000.
This would be an interesting volt-nuts project, to add an degausser
circuitry, as it seems that it can be realized easily.
On the other hand, I did not find hysteresis effects on a 1ppm level yet
on my 2 (3) LTZ1000 references, although my dearest wife has cut off the
supply of my double LTZ standard for a few days to save energy.
Until then, the box had been running for about 2 years without
interruption, and they had been and still are in agreement with the
3458A and the 5442A to the mentioned stability level.
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