Measurement Variation between Analogue and Digital Equipment

Abstract

Recently, manufacturing companies have been evaluating measurement equipment used for in‐process inspection. The precision and accuracy of the measurement operation are a major factor of an overall quality control programme. Compares two measurement systems of scales and callipers in three laboratory settings for the purpose of identifying sources of significant differences in measurements. The experimental design used was a nested and crossed design with blocking on manufactured parts. Operators and types of equipment (digital and analogue) were nested within laboratories and crossed with one another. Finds, at a significance level of 0.001, that variation exists among laboratories and between types of scales, while, for callipers, significant variation occurred among laboratories, between types of callipers and between operators.

Citation

Ozgur, C.O. and Meek, G.E. (1993), "Measurement Variation between Analogue and Digital Equipment", International Journal of Quality & Reliability Management, Vol. 10 No. 1. https://doi.org/10.1108/02656719310023753