Elements of an Approach to the Assessment of Random Uncertainty in Transient Measurements

[+] Author and Article Information
P. K. Maciejewski

Mechanical Engineering Department, University of Pittsburgh, Pittsburgh, PA 15261

J. Fluids Eng 118(1), 90-95 (Mar 01, 1996) (6 pages) doi:10.1115/1.2817521 History: Received December 05, 1994; Revised November 06, 1995; Online December 04, 2007


This paper presents an approach to the assessment of random uncertainty in transient measurements based on the modeling of a time series that is representative of the variable of interest. The recommended approach employs conventional regression techniques to estimate all parameters that appear in a model for a given time series. Assessments of random uncertainty are based on the residual deviations associated with an adequate model for a given time series. The approach also incorporates a treatment of the dynamic response of a measurement system as it pertains to random uncertainty in transient measurements.

Copyright © 1996 by The American Society of Mechanical Engineers
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