QIMT Glossary

Definitions of Metrology terms & phrases.

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Standard, travelling

Standard, sometimes specially composed, for use in making comparisons between standards at different locations.


The input signal for a measuring system can be called a stimulus and the output signal can be called a response.

System of measurement units

A number of basic units and derived units defined in accordance with given rules for a given system of values.

System of units

Systematic error

Mean that would result from an infinite number of measurements of the same measurand carried out under repeatability conditions minus a true value of the measurand.

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