Glossary · definition
Precision
The closeness of agreement between repeated measurements of the same quantity under stated conditions. Precision says nothing about closeness to the true value.
See also:AccuracyRepeatabilityReproducibility
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Ask ValiTrac AIDefinitions are aligned with the international vocabulary of metrology (JCGM 200) and common laboratory usage; consult the source document for the normative wording. All terms
Articles on Precision
Ten VIM terms every calibration user should know
Measurand, indication, error, correction, accuracy, precision, trueness, resolution, drift and traceability — defined as the international vocabulary defines them.
Accuracy vs precision in measurement
Precision is about scatter; accuracy is about closeness to the true value. An instrument can be precise and wrong, or accurate on average and noisy.
Thermistors: high sensitivity over a narrow range
NTC thermistors offer very high resolution and stability near ambient, which is why many precision loggers use them. Their non-linearity means calibration at several points and a fitted equation.