Dictionary · Instruments
Dead band
The maximum interval through which the value of the quantity being measured can be changed in both directions without producing a detectable change in indication — hysteresis's operational signature.
Related terms
More from Instruments
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
Steady-state operating condition
An operating condition under which the relation established by calibration remains valid even though the measurand varies with time.
VIM (JCGM 200:2012) 4.8
Measuring chain
The series of elements of a measuring system constituting a single path of the measurement signal from sensor to output element.
VIM (JCGM 200:2012) 3.10
Measuring instrument
A device used for making measurements, alone or in conjunction with supplementary devices.
VIM (JCGM 200:2012) 3.1
Nominal quantity value
A rounded or approximate value of a characterizing quantity of a measuring instrument that guides its appropriate use — the "100 Ω" stamped on a resistor, the "1 kg" of a weight.
VIM (JCGM 200:2012) 4.6
Blank indication
The indication obtained from a phenomenon, body, or substance similar to the one under investigation but for which the quantity of interest is supposed absent or not contributing — the analytical chemist's blank, generalized.
VIM (JCGM 200:2012) 4.2