This book deals with the basic principles of engineering experimentation rather than the hardware. It discusses experiments in terms of planning; statistical analysis of instrumental and other error; dimensional analysis; fundamental characteristics of instruments; data checking and locating error; and data analysis by statistical, graphical, and numerical means. Second Edition features include new chapters on FORTRAN programming in data processing and on basic instrumentation principles, additional data on statistical error distributions, and over 150 problems, many of which are new or revised.