基本説明
Translated from the Russian by M. Alferieff. Starting from the basics of metrology, the book studies this subject in detail, from theoretical analysis all the way to concrete practical recommendations in areas ranging from single measurements in industry, trade, etc. to multiple measurements in experimental sciences.
Full Description
The major objective of this book is to give methods for estimating errors and uncertainties of real measurements: measurements that are performed in industry, commerce, and experimental research. This book is needed because the existing theory of measurement errors was historically developed as an abstract mathematical discipline. As a result, this theory allows estimation of uncertainties of some ideal measurements only and is not applicable to most practical cases. In particular, it is not applicable to single measurements. This situation did not bother mathematicians, whereas engineers, not being bold enough to assert that the mathematical theory of errors cannot satisfy their needs, solved their particular problems in one or another ad hoc manner. Actually, any measurement of a physical quantity is not abstract, but it involves an entirely concrete procedure that is always implemented with concrete te- nical devices—measuring instruments—under concrete conditions. Therefore, to obtain realistic estimates of measurement uncertainties, mathematical methods must be supplemented with methods that make it possible to take into account data on properties of measuring instruments, the conditions under which measu- ments are performed, the measurement procedure, and other features of measu- ments. The importance of the methods of estimating measurement inaccuracies for practice can scarcely be exaggerated. Indeed, in another stage of planning a m- surement or using a measurement result, one must know its error limits or unc- tainty. Inaccuracy of a measurement determines its quality and is related to its cost.
Contents
General Information About Measurements.- Measuring Instruments and Their Properties.- Prerequisites for the Analysis of the Inaccuracy of Measurements and for Synthesis of Their Components.- Statistical Methods for Experimental Data Processing.- Direct Measurements.- Indirect Measurements.- Examples of Measurements and Measurement Data Processing.- Combined Measurements.- Combining the Results of Measurements.- Calculation of the Errors of Measuring Instruments.- Problems in the Theory of Calibration.- Conclusion.
