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Title: Calibration Of Industrial Measuring Instruments
Author: Raghu Kacker
Source: 1995 Measurement Science Conference
Year Published: 1995
Abstract: Calibration is done in industry to reduce the errors in product measurements by correcting their intercept and slope relative to a reference scale. Thii paper deals with the errors remaining after calibration due to (1) the differences between products and reference artifacts, (2) the differences between measurement and calibration conditions, and (3) the driit in instrument response. When the influence of these sources of error is excessive, product measurements may be worthless. This paper proposes an industrial calibration system that addresses the following questions: How should one deal with the diiferences between products and reference artifacts, and with the differences between measurement and calibration conditions? In order to control errors due to the drift in instrument response, how often does a measuring instrument need to be checked and when does it need to be re-calibrated? What is the uncertainty remaining after calibration in product measurements ? The proposed industrial calibration system can substantially reduce the errors in real time product measurements, and is broadly applicable.

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