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Title: The Study Of A Measurement Equipment Bias
Author: Carmen Simion
Source: 2005 Measurement Science Conference
Year Published: 2005
Abstract: Accuracy and precision are two terms that must be understood in all measurements, so a measurement system can be described in five ways: bias, linearity, stability, repeatability and reproducibility. To assess any measurement system, companies use usually Repeatability & Reproducibility studies, but to know more about the measurement system, one needs to be able to evaluate measurement system bias, stability and linearity. The aim of this paper is to point out the bias study steps and to show a measurement equipment bias case study that was made in a major automotive company. Lack of equipment bias is not as predominant a measurement system error as repeatability and reproducibility, nevertheless, it should be identified.