Anyone got a photo of a 3458A with "new volt" printed on it?
I was chatting to someone from my radio club in the pub last night,
and somehow we got onto the definition of a volt.
I'd like to try to research this, and perhaps give a talk at our
radio club on it.
David, there was very good Swiss metrology school in 2007, Les Houches,
where Blaise Jeanneret published a concise presentation about the Volt,
its definition and history. Unfortunately, this is nowhere online anymore.
I could send it to you, if you were interested.
Frank
Yes Frank, I'm interested.
Kind regards, Wim
Wim.de.jong.59@solcon.nl
(ex fluke employee)
-----Oorspronkelijk bericht-----
Van: "Frank Stellmach" frank.stellmach@freenet.de
Verzonden: 31-5-2017 21:57
Aan: "volt-nuts@febo.com" volt-nuts@febo.com
Onderwerp: [volt-nuts] Anyone got a photo of a 3458A with "new volt" printed on it?
I was chatting to someone from my radio club in the pub last night,
and somehow we got onto the definition of a volt.
I'd like to try to research this, and perhaps give a talk at our
radio club on it.
David, there was very good Swiss metrology school in 2007, Les Houches,
where Blaise Jeanneret published a concise presentation about the Volt,
its definition and history. Unfortunately, this is nowhere online anymore.
I could send it to you, if you were interested.
Frank
volt-nuts mailing list -- volt-nuts@febo.com
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and follow the instructions there.
On 31 May 2017 at 20:57, Frank Stellmach frank.stellmach@freenet.de wrote:
I was chatting to someone from my radio club in the pub last night, and
somehow we got onto the definition of a volt.
I'd like to try to research this, and perhaps give a talk at our radio
club on it.
David, there was very good Swiss metrology school in 2007, Les Houches,
where Blaise Jeanneret published a concise presentation about the Volt, its
definition and history. Unfortunately, this is nowhere online anymore.
I could send it to you, if you were interested.
Frank
Sure Frank, that would be good. I assume you have a PDF, but if not I can
pay postage/copying costs. The email address you see I'm sending from is
valid, and can accept attachments.
If you can email it, I can stick it on a web server, and let others find
it, as I doubt I'm the only one interested on volt-nuts.
Dave
If it is of any interest NIST has just compared two of their PJSV's and it is in the 10-12 range.
[https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/srm/130307-first-nim-pjvs.jpg?itok=21EbYlCO]https://www.nist.gov/srm/sri/standard-reference-instruments/sri-6000-series-programmable-josephson-voltage-standard-pjvs
SRI 6000 Series Programmable Josephson Voltage Standard ...https://www.nist.gov/srm/sri/standard-reference-instruments/sri-6000-series-programmable-josephson-voltage-standard-pjvs
www.nist.gov
The Programmable Josephson voltage standard (PJVS) is an instrument that generates stable, quantum-accurate, direct-current (DC) voltages that are programmable over ...
They also achieved the 1 volt threshold last year on the AC Josephson.
Also of possible Volt-Nut interest, I have been characterizing a number of 3458A over the past year and on interest; I always assumed that most of the drift was from the Zener, but actually the A/D's are also a major factor. You would think with all the design updates Keysight could find a better A/D then the 1988 design.
Enjoy
Thomas Knox
1-303-554-0307
actast@hotmail.com
From: volt-nuts volt-nuts-bounces@febo.com on behalf of Frank Stellmach frank.stellmach@freenet.de
Sent: Wednesday, May 31, 2017 1:57 PM
To: volt-nuts@febo.com
Subject: [volt-nuts] Anyone got a photo of a 3458A with "new volt" printed on it?
I was chatting to someone from my radio club in the pub last night,
and somehow we got onto the definition of a volt.
I'd like to try to research this, and perhaps give a talk at our
radio club on it.
David, there was very good Swiss metrology school in 2007, Les Houches,
where Blaise Jeanneret published a concise presentation about the Volt,
its definition and history. Unfortunately, this is nowhere online anymore.
I could send it to you, if you were interested.
Frank
volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
volt-nuts Info Page - American Febo Enterpriseshttps://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
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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.
Moin,
On Wed, 31 May 2017 21:57:05 +0200
Frank Stellmach frank.stellmach@freenet.de wrote:
David, there was very good Swiss metrology school in 2007, Les Houches,
where Blaise Jeanneret published a concise presentation about the Volt,
its definition and history. Unfortunately, this is nowhere online anymore.
I could send it to you, if you were interested.
Frank gave me the file.
You can download it from:
http://time.kinali.ch/volt/15_Jeanneret.pdf
Attila Kinali
--
You know, the very powerful and the very stupid have one thing in common.
They don't alters their views to fit the facts, they alter the facts to
fit the views, which can be uncomfortable if you happen to be one of the
facts that needs altering. -- The Doctor