Definitions of Metrology terms & phrases.
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- Click on the "Add a New Entry" button.
- Under the first required field labeled 'Concept', enter the Metrology word or term.
- In the 'Description' Field, put the definition, don't forget to use the "DeWord" button to remove MS Word formatting if you are copying and pasting from MS Word; see lounge forum for note regarding this issue.
- Ignore the other entries and submit.
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Uncertainty of measurement
Parameter, associated with the result of a measurement that characterises the dispersion of values that could reasonably be attributed to the measurand. The estimation of uncertainty in accordance with GUM guidelines is usually accepted.
Unit (of measurement)
Particular quantity, defined and adopted by convention, with which other quantities of the same kind are compared in order to express their magnitudes relative to that quantity.
Unit of measurement (derived) coherent
Derived unit of measurement that can be expressed as the product of basic units in powers with the proportionality coefficient 1.