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Title: Calculating Interval Uncertainties for Calibration Standards That Drift with Time

Abstract

Calibrated values of many devices exhibit predictable drift over time. To provide an uncertainty statement valid over the entire calibration interval, one must account for drift. In this article, a method of accounting for drift is proposed based on guidance in the Guide to Expression of Uncertainty in Measurement. An additional uncertainty term is computed using a linear regression of historical measurement data, which is included along with the time-of-test uncertainty. This method is evaluated by analyzing its average out-of-tolerance (OOT) rate using a Monte Carlo simulation, which results in the desired 5% average OOT rate when the total uncertainty is expanded to a 95% confidence interval.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1670750
Report Number(s):
SAND2020-3749J
Journal ID: ISSN 1931-5775; 685131
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
NCSLI Measure
Additional Journal Information:
Journal Name: NCSLI Measure; Journal ID: ISSN 1931-5775
Publisher:
Taylor & Francis - NCSL International
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Delker, Collin J., Auden, Elizabeth C., and Solomon, Otis M. Calculating Interval Uncertainties for Calibration Standards That Drift with Time. United States: N. p., 2020. Web. doi:10.1080/19315775.2020.1774945.
Delker, Collin J., Auden, Elizabeth C., & Solomon, Otis M. Calculating Interval Uncertainties for Calibration Standards That Drift with Time. United States. doi:10.1080/19315775.2020.1774945.
Delker, Collin J., Auden, Elizabeth C., and Solomon, Otis M. Fri . "Calculating Interval Uncertainties for Calibration Standards That Drift with Time". United States. doi:10.1080/19315775.2020.1774945.
@article{osti_1670750,
title = {Calculating Interval Uncertainties for Calibration Standards That Drift with Time},
author = {Delker, Collin J. and Auden, Elizabeth C. and Solomon, Otis M.},
abstractNote = {Calibrated values of many devices exhibit predictable drift over time. To provide an uncertainty statement valid over the entire calibration interval, one must account for drift. In this article, a method of accounting for drift is proposed based on guidance in the Guide to Expression of Uncertainty in Measurement. An additional uncertainty term is computed using a linear regression of historical measurement data, which is included along with the time-of-test uncertainty. This method is evaluated by analyzing its average out-of-tolerance (OOT) rate using a Monte Carlo simulation, which results in the desired 5% average OOT rate when the total uncertainty is expanded to a 95% confidence interval.},
doi = {10.1080/19315775.2020.1774945},
journal = {NCSLI Measure},
issn = {1931-5775},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {8}
}

Journal Article:
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