A correction is the value that is added to the raw result of a measurement to compensate for known or estimated systematic error or bias. (VIM, 3.15) Any residual amount is treated as random error. The correction value is equal to the negative of the bias. An example is the value calculated to compensate for the calibration difference of a reference thermometer or for the calibrated offset voltage of a thermocouple reference junction. See also: bias, error, random error, systematic error

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