Uncertainty Estimation of Free Surface Flow Rates Determined by ADCP or Current Meter Gauging
Published Online: 3 FEB 2010
Copyright © 2009 ISTE Ltd.
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
- Published Online: 3 FEB 2010
- Published Print: 1 JAN 2009
Print ISBN: 9781848210486
Online ISBN: 9780470611371
- flow determination;
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.