Calculus of the uncertainty in acoustic field measurements: comparative study between the uncertainty propagation method and the distribution propagation method

Navacerrada Saturio, María de los Ángeles and Díaz Sanchidrián, César and Pedrero González, Antonio and Iglesias Martínez, Luis (2008). Calculus of the uncertainty in acoustic field measurements: comparative study between the uncertainty propagation method and the distribution propagation method. In: "V Congreso Ibérico de Acústica, XXIX Congreso Español de Acústica TECNIACÚSTICA®2008", 20/10/2008 - 22/10/2008, Coimbra, Portugal. pp. 1-12.

Description

Title: Calculus of the uncertainty in acoustic field measurements: comparative study between the uncertainty propagation method and the distribution propagation method
Author/s:
  • Navacerrada Saturio, María de los Ángeles
  • Díaz Sanchidrián, César
  • Pedrero González, Antonio
  • Iglesias Martínez, Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: V Congreso Ibérico de Acústica, XXIX Congreso Español de Acústica TECNIACÚSTICA®2008
Event Dates: 20/10/2008 - 22/10/2008
Event Location: Coimbra, Portugal
Title of Book: ACÚSTICA 2008 : V Congresso Ibérico de Acústica, XXXIX Congreso Español de Acústica TECNIACÚSTICA 2008, Acoustics European Symposium, EXPOACÚSTICA 2008 : Coimbra, 20-22 outubro : Actas do congresso
Date: October 2008
Subjects:
Faculty: E.U.I.T. Telecomunicación (UPM)
Department: Ingeniería Audiovisual y Comunicaciones [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The new Spanish Regulation in Building Acoustic establishes values and limits for the different acoustic magnitudes whose fulfillment can be verify by means field measurements. In this sense, an essential aspect of a field measurement is to give the measured magnitude and the uncertainty associated to such a magnitude. In the calculus of the uncertainty it is very usual to follow the uncertainty propagation method as described in the Guide to the expression of Uncertainty in Measurements (GUM). Other option is the numerical calculus based on the distribution propagation method by means of Monte Carlo simulation. In fact, at this stage, it is possible to find several publications developing this last method by using different software programs. In the present work, we used Excel for the Monte Carlo simulation for the calculus of the uncertainty associated to the different magnitudes derived from the field measurements following ISO 140-4, 140-5 and 140-7. We compare the results with the ones obtained by the uncertainty propagation method. Although both methods give similar values, some small differences have been observed. Some arguments to explain such differences are the asymmetry of the probability distributions associated to the entry magnitudes,the overestimation of the uncertainty following the GUM

More information

Item ID: 19251
DC Identifier: http://oa.upm.es/19251/
OAI Identifier: oai:oa.upm.es:19251
Official URL: http://www.sea-acustica.es/index.php?id=432
Deposited by: Memoria Investigacion
Deposited on: 10 Mar 2014 20:25
Last Modified: 02 Apr 2020 10:51
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