Dictionary · Instruments
Measuring system
One or more measuring instruments and often other devices, assembled and adapted to give measured values within specified intervals for quantities of specified kinds.
Related terms
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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
Variation due to an influence quantity
The difference in indication, or in the supplied quantity value of a material measure, when an influence quantity assumes two different specified values — the temperature coefficient on a datasheet is one of these.
VIM (JCGM 200:2012) 4.22
Nominal indication interval
The set of values, bounded by rounded or approximate extreme indications, obtainable with a particular setting of the controls and used to designate that setting — the "0–100 V range" on a meter switch.
VIM (JCGM 200:2012) 4.4
Selectivity of a measuring system
The property whereby the system provides measured values for one or more measurands that are independent of other measurands or influence quantities.
VIM (JCGM 200:2012) 4.13
Range of a nominal indication interval
The absolute difference between the extreme values of a nominal indication interval — 200 V for the −100 V to +100 V setting.
VIM (JCGM 200:2012) 4.5
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