Uncertainty Estimation of Free Surface Flow Rates Determined by ADCP or Current Meter Gauging

  1. French College of Metrology
  1. Audrey Olivier1,
  2. Bertrand Blanquart2,
  3. Gilles Pierrefeu1 and
  4. Mattia Scotti1

Published Online: 3 FEB 2010

DOI: 10.1002/9780470611371.ch7

Transverse Disciplines in Metrology

Transverse Disciplines in Metrology

How to Cite

French College of Metrology (2009) Uncertainty Estimation of Free Surface Flow Rates Determined by ADCP or Current Meter Gauging, in Transverse Disciplines in Metrology, ISTE, London, UK. doi: 10.1002/9780470611371.ch7

Author Information

  1. 1

    Laboratoire d'hydraulique et mesures de la Compagnie Nationale du Rhǒne, Lyon

  2. 2

    CETIAT, Division Métrologie, Villeurbanne

Publication History

  1. Published Online: 3 FEB 2010
  2. Published Print: 1 JAN 2009

ISBN Information

Print ISBN: 9781848210486

Online ISBN: 9780470611371

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Keywords:

  • propagation;
  • flow determination;
  • reproducibility;
  • broadband;
  • correlations

Summary

The need to know the values of the flow rates measured with ever less uncertainty led the Compagnie Nationale du Rhǒne, with the help of CETIAT, to carry out an in-depth study on the uncertainty of the flow rates measured by two main methods, i.e. current meter and ADCP (Acoustic Doppler Current Profiler).

Standards NF EN ISO 748 and NF ENV 13005 are applied to the current meter. Then the uncertainty of the flow rate measured by ADCP is estimated by a comparative study between ADCP and the current meter (ISO 5725).

This study has led CNR to choose an uncertainty of ± 7% for current meter gauging and ± 5% for ADCP gauging.