An ontology of clocks

Kurt Roeckx kurt at
Mon Feb 22 18:02:14 UTC 2016

On Mon, Feb 22, 2016 at 03:16:54AM -0800, Hal Murray wrote:
> dfoxfranke at said:
> > I've seen "precision" used both ways by different authors, but I think
> > you're right that resolution is a better choice of terminology because it
> > avoids that ambiguity. 
> A good glossary would be a big help.
> gem at said:
> >     "Precision is the random uncertainty of a measured value, expressed
> >     by the standard deviation or by a multiple of the standard
> >     deviation." 
> I can't figure out what that means.
> I think it's something different than the simple digital sort of things that 
> Daniel has been discussing.  Standard deviation makes me think that it's 
> interested in the noise of capturing a PPS signal.  If you look carefully, 
> you might get a bell curve or something like it, probably not symmetric.

I suggest you read the article on wikipedia about it.


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