Random error

• Analysis of measurement errors from definition, classification to correction and limitations of compensation

  This article focuses on measurement errors, introducing that it is the difference between the measurement result and the true value...
  Uncorrected resultsMeasurement result correction

• Analysis of the precision, trueness, accuracy in measurement and the industry - customary expressions of "accuracy"

  This article details three concepts in measurement: precision, trueness, and accuracy...
  Measurement precisionThe error direction is fixed

• Analysis of the quality control and abnormal judgment strategies in the process of shifting from an unstable state to a stable state in control chart logic

  When the process starts, it is often in an unsteady state...
  Rules for judging non - conformityRandom error