ABSTRACT
Uncertainty analysis is a technique that is used to estimate the interval about a measured variable or a determined result within which the true value is thought to lie with a certain degree of confidence. Uncertainty analysis is an extremely useful tool for all phases of an experimental program from initial planning to detailed design, debugging, test operation, and data analysis. The application of uncertainty analysis in engineering has evolved considerably since the classic paper of Kline and McClintock. Developments in the field have been especially rapid and significant over the past decade. This chapter discusses the uncertainties of individual measured variables and of determined results. It concludes with an overview of the use of uncertainty analysis in all phases of an experimental program.
