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Terms for subject Metrology (318 entries)

IT calorie	international table calorie
KALREZ®	Registered trademark of E.I. Du Pont de Nemours & Co., Wilmington, USA
level probe	In conductive or capacitive level measurement: a metal rod or rope, sometimes with isolating coating, which is immersed in the process medium in order to make the measurement possible
linearity	The closeness with which a calibration curve approximates to a specified straight line. Linearity is a specific case of conformity where the specified curve is a straight line
linearity error	The absolute value of the maximum deviation between the calibration curve and the specific straight line
long-term drift	Drift: An undesired gradual change in the input-output relationship of a device over a period of time, not caused by external influences on the device
lower range-value	The lowest value of the measured variable that a device is adjusted to measure
MHD channel	magnetohydrodynamic channel
MHD flow	magnetohydrodynamic flow
MHD generator	magnetohydrodynamic generator
marking transfer certificate	A certificate that confirms the correct transfer of the material identification stamp of a semi-finished product to a finished product
material	The materials used in the construction of the equipment, in particular for parts which come into contact with the process or environment
material identification check	A test that provides an unambiguous identification of a material
measurand	The variables measured by the equipment
measured error	The greatest possible positive or negative value of error determined from the curve of average upscale error or the curve of average downscale error
measured value	The numerical quantity expressed by a number and unit of measurement resulting from the information obtained by a measuring device, at the instant considered under specified conditions
measured variable	The variables measured by the equipment
measurement	The determination of the existence or the magnitude of a variable
measurement influence	A quantity which is not the subject of measurement, but which influences the value of the measured variable of the indication of the measuring instrument, e.g. ambient temperature
measuring error	The greatest possible positive or negative value of error determined from the curve of average upscale error or the curve of average downscale error