QUANTIFYING IMPACTS ON THE MEASUREMENT UNCERTAINTY IN FLOW CALIBRATION ARISING FROM DYNAMIC FLOW EFFECTS

• Abstract:

  Traceability of the measurement units in fluid flow metering, as the state-of-the-art approach, is practiced as a so-called element-by-element method which relies upon the idealistic assumption that the measurement process in a flow calibration facility can be run under exact steady-state conditions, i.e. absolutely no fluctuations of the flow quantities are assumed to occur during the flow measurement process. Practical experiences, combined with a model-based analytical view of the measurement process in a flow standard, have revealed that dynamic impacts on the measurement uncertainty due to flow rate fluctuations have to be taken into account, in addition to the steady-state traceability chain.
• Keywords:

  liquid flow calibration, fluctuation of process parameters, measurement uncertainty analysis, traceability in fluid flow, element-by-element chain of traceability, dynamic system behavior
• Download:

  IMEKO-TC9-2013-014.pdf
• DOI:

  _unreg_tc9-2013.014

Event details:

• IMEKO TC:

  TC9
• Event name:

  FLOMEKO 2013
• Title:

  16th International Flow Measurement Conference

• Place:

  Paris, FRANCE
• Time:

  24 September 2013 - 26 September 2013