On 18 Dec 2014 19:06, "Poul-Henning Kamp" <p...@phk.freebsd.dk> wrote: > > -------- > In message <5492f59e.8060...@free.fr>, Joel Setton writes: > > >In my search for the Perfect Volt, I'm thinking about building a > >reference voltage generator which would average the voltages generated
> If you want to do it "right", you should average all sorts of > different (but obviously: good) chips, possibly assigning them > different weight depending on their qualities. I was aware of three 8.5 digit multimeters * Keysight 3458A * Fluke 8508A * Keithley 2002. But http://www.eevblog.com/forum/testgear/8-5-digit-dmm/ lists several others - some from manufacturers I have never heard of. I would assume that they all use a state of the art voltage references. I wonder if they all use the same method? If not, perhaps averaging those would be one approach. How would you average them? Assuming they are supposed to be the same voltage, would it be OK to tie N output together with N resistors? Use low value resistors on the references you trust most, and higher values on those you trust least. Dave _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
