[time-nuts] Crude Survey Technique

Hal Murray hmurray at megapathdsl.net
Mon Nov 25 00:18:11 EST 2013


david-taylor at blueyonder.co.uk said:
> I do see computer temperature sensors reporting in millidegrees, with an
> accuracy of +/-  2°C!

That's perfectly reasonable if the sensor is locally linear so the deltas 
between nearby readings are meaningful.

It's the same thing as measuring the frequency of a crystal to 1 ppm when the 
rating on the data sheet is 100 ppm.

It's stability vs accuracy.



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