Dictionary · Instruments
Maximum permissible error (MPE)
The extreme value of measurement error, with respect to a known reference value, permitted by specifications or regulations for a given instrument. Verification confirms indications fall within ±MPE.
Related terms
More from Instruments
Instrument bias
The average of replicate indications minus a reference quantity value — the instrument-level counterpart of measurement bias.
VIM (JCGM 200:2012) 4.20
Discrimination threshold
The largest change in the value of the quantity being measured that causes no detectable change in the corresponding indication — stickiness quantified.
VIM (JCGM 200:2012) 4.16
Detector
A device or substance that indicates the presence of a phenomenon, body, or substance when a threshold of an associated quantity is exceeded — presence, not magnitude.
VIM (JCGM 200:2012) 3.9
Indication interval
The set of quantity values bounded by the extreme possible indications.
VIM (JCGM 200:2012) 4.3
Sensitivity of a measuring system
The quotient of the change in an indication and the corresponding change in the value of the quantity being measured.
VIM (JCGM 200:2012) 4.12
Resolution
The smallest change in the quantity being measured that causes a perceptible change in the corresponding indication. Digital resolution contributes a rectangular uncertainty component of (δ/2)/√3.
VIM (JCGM 200:2012) 4.14