The process of calibrating a small number of 'unknown' standards relative to one or two reference standards involved determining differences among the group of objects. Drift, due most often to temperature effects, or a 'left-right' polarity effect can bias both the values assigned to the objects and the estimate of the effect of random errors. This note presents schedules of measurements of differences that eliminate the bias from these sources in the assigned value and variances at the same time gives estimates of the magnitude of these extraneous components. The use of these designs in measurement process control is discussed and a computer program in BASIC is presented. (Author).

Excerpt from Designs for the Calibration of Small Groups of Standards in the Presence of Drift These deviations provide the information needed to obtain a value, 5, which is the experiment's value for the process standard deviation, 0. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.