Hi Ken; I corrected the link. There is a lot more to a voltage standard then the Zener, a very reasonably priced alternative to a JJA may be a Fluke 732A.
These boxes have been in use for years and their characteristics have been extensively documented. This link may also be of interest. http://assets.fluke.com/appnotes/calibration/deaver_msc01.pdf PREDICTABILITY OF SOLID STATE ZENER REFERENCES<http://assets.fluke.com/appnotes/calibration/deaver_msc01.pdf> assets.fluke.com PREDICTABILITY OF SOLID STATE ZENER REFERENCES David Deaver Fluke Corporation PO Box 9090 Everett, AW 98206 425-446-6434 [email protected] Abstract - With the ... Cheers; Thomas Knox ________________________________ From: volt-nuts <[email protected]> on behalf of Ken Peek <[email protected]> Sent: Wednesday, October 19, 2016 4:35 PM To: volt-nuts Subject: Re: [volt-nuts] Low-cost Josephson Junction Array @Vince: Thank you for the link! Very informative! There is also a nice video showing some of the lab techniques, and some cautions working with cryogenic liquids. I would also like to explore miniature cryocoolers-- as these might be able to support a small lower power array (1V) if it doesn't dissipate too much power... There is already some progress in this area with a QHR made from graphene (at the NPL in the UK). So, maybe the same cryocooler could be used also for the low-cost JJA ? Having a 10V (fixed output) JJA and a 12K9 QHR would be the basis to calibrate all other electrical standards in a lab. It would be nice to have these sitting in their cryocoolers cranking out volts and ohms practically indefinitely (or as long as you want)-- and if one has even a rubidium atomic clock, then no external signals or standards of any kind would be needed. Well, that and a triple-point of water cell (which I have) for temperature calibrations. -Ken _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts volt-nuts Info Page - American Febo Enterprises<https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts> www.febo.com volt-nuts is a low volume, high SNR list for the discussion of precise voltage measurement and related topics. To see the collection of prior postings to the list ... and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
