[volt-nuts] HP 3457A

[Charles Steinmetz]

Poul-Henning wrote:

>People don't understand that "calibrated" doesn't mean that
>it shows the right thing, but that you know how wrong it is.

A very pedantic expansion of the above (but then, this is volt-nuts):

"Calibrated" means that you know (i) what your best estimate of the 
actual measured quantity is, based on a given measurement (i.e., the 
predicted "offset" of the calibrated instrument), and (ii) what the 
uncertainty of that estimate is.

Best regards,

Charles