Expression of uncertainties of a pressure measurement system using IDEF0 modeling

Author

López-Uribe, J.R. ; B-Souza, A.B. ; Ichinose, R.M. ; Giannella-Neto, A.

Author_Institution

Programa de Eng. Biomedica, UFPJ, Rio de Janeiro, Brazil

fYear

2011

fDate

March 28 2011-April 1 2011

Firstpage

365

Lastpage

369

Abstract

The calibration and the evaluation of the associated uncertainty in measurement systems are essential to obtain good results. The results will be more reliable the lower the uncertainty of the measurement process is. The aim of this work is to calculate the associated uncertainties of a pressure measurement system employed to evaluate mechanical ventilators. The uncertainties were estimated using the IDEF0 model based on ISO/GUM. The minimum value for the expanded uncertainty was 0,30 cmH₂O and the maximum was 0,67 cmH₂O. These values are adequate for the applications of the pressure measurement system. A revision in the measurement process could result in lower values for the expanded uncertainties.

Keywords

ISO standards; biomedical equipment; biomedical measurement; calibration; pneumodynamics; pressure measurement; IDEF0 modeling; ISO-GUM standards; calibration; clinical engineering; expanded uncertainty; mechanical ventilators; pressure measurement system; Conferences; Couplings; IEEE catalog; Instruments; Measurement uncertainty; Medical services; Uncertainty; Clinical engineering; IDEF0; expression of uncertainty; metrology;

fLanguage

English

Publisher

ieee

Conference_Titel

Health Care Exchanges (PAHCE), 2011 Pan American

Conference_Location

Rio de Janeiro

Print_ISBN

978-1-61284-915-7

Type

conf

DOI

10.1109/PAHCE.2011.5871927

Filename

5871927