[volt-nuts] Calibration Sources for Solartron 7081

[J. L. Trantham]

Jean-Louis,

My DC standards are a Fluke 731B and Fluke 335A DC Voltage Standards and an
EDC CR103 DC Current and Voltage Standard.

My resistance standards consist of a collection of Leeds and Northrup type
standard resistors as well as a collection of General Radio Decade
Resistance boxes that will get me up into the MegOhm range.

However, AC promises to be a problem.  I guess I will try using a signal
generator and an amplifier to see what output level and stability I can
achieve.

But still, what frequency?  60 Hz?  1 kHz?

Thanks,

Joe


-----Original Message-----
From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On
Behalf Of Jean-Louis Noel
Sent: Friday, June 22, 2012 3:58 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] Calibration Sources for Solartron 7081


Hi J. L.

From: "J. L. Trantham" <jltran at att.net>

> What source could/should I use for the ACV and what frequency for the 
> ACV? I can come up with a power transformer and a variac for 60 Hz.

The stability is not high enough to be useful!
Have a look to http://www.on4jln.be/infos/getfile?file=515A-OM.pdf,
it is the Fluke 515A, to learn how they dealt with that problem. If your 10V
is good you will get better results too. And it needs to be very good to
calibrate the 7081! Stability is more important than everything else and
that is the problem.

Have a good day.

Bye,
Jean-Louis

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