Reference Values for the Sensitivity of Standard Accelerometers Used in Intercomparisons

Published

November 1, 2000

Author(s)

David J. Evans, Stefan D. Leigh, Beverly F. Payne

Abstract

The National Metrology Institutes (NMIs) of 5 countries in North America and South America participated in an interlaboratory comparison involving the calibration of the magnitude of the sensitivity of 3 standard accelerometers. This comparison was performed by laboratories within the framework of the Interamerican Metrology System (SIM). One of the key values to be obtained in any interlaboratory comparison is an estimate of the reference values for the artifact being calibrated. Three statistical methods have been used to obtain candidate reference values and associated uncertainties from the SIM intercomparison data: an average of means method; a method based on the ISO Guide to the expression of uncertainty in measurement; and a maximum likelihood method. Reference values and associated uncertainties obtained using the three methods are presented and compared, as well as useful graphical displays with resulting qualitative conclusions.

Citation

Journal of the Acoustical Society of America

Volume

108 (5)

Issue

No. 5

Pub Type

Journals

Keywords

accelerometers, calibration, Interamerican Metrology System, metrology, reference values, SIM, SIM intercomparison, standard accelerometers

Citation

Evans, D. , Leigh, S. and Payne, B. (2000), Reference Values for the Sensitivity of Standard Accelerometers Used in Intercomparisons, Journal of the Acoustical Society of America (Accessed April 20, 2024)