This book is intended for use in a course on engineering measurements or experimental methods at the upper undergraduate/graduate level in mechanical, chemical and electrical engineering departments. It offers a broad scope of experimental measurement techniques for mechanical and general engineering applications. This text emphasizes the use of uncertainty analysis and statistical data analysis in the estimation of the accuracy of measurements. This sixth edition includes a glossary of data acquisition terms. The scope of the text has been enhanced by expansion of statistical data analysis and general system analysis. Over 100 worked examples and 500 end-of-chapter problems are included, and writing projects have been revised.