Verification of the Calculation Assumptions Applied to Solutions of the Acoustic Measurements Uncertainty

• Autorzy: Batko W. , Bal R.

Identyfikatory

DOI

10.2478/aoa-2014-0024

• Języki publikacji: EN

Abstrakty

EN

The assessment of the uncertainty of measurement results, an essential problem in environmental acoustic investigations, is undertaken in the paper. An attention is drawn to the – usually omitted – problem of the verification of assumptions related to using the classic methods of the confidence intervals estimation, for the controlled measuring quantity. Especially the paper directs attention to the need of the verification of the assumption of the normal distribution of the measuring quantity set, being the base for the existing and binding procedures of the acoustic measurements assessment uncertainty. The essence of the undertaken problem concerns the binding legal and standard acts related to acoustic measurements and recommended in: ‘Guide to the expression of uncertainty in measurement’ (GUM) (OIML 1993), developed under the aegis of the International Bureau of Measures (BIPM). The model legitimacy of the hypothesis of the normal distribution of the measuring quantity set in acoustic measurements is discussed and supplemented by testing its likelihood on the environment acoustic results. The Jarque-Bery test based on skewness and flattening (curtosis) distribution measures was used for the analysis of results verifying the assumption. This test allows for the simultaneous analysis of the deviation from the normal distribution caused both by its skewness and flattening. The performed experiments concerned analyses of the distribution of sound levels: LD, LE, LN, LDWN, being the basic noise indicators in assessments of the environment acoustic hazards.

Słowa kluczowe

EN

environmental noise control; statistical analysis; acoustic measurement; uncertainty

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Polska Akademia Nauk
• Czasopismo: Archives of Acoustics
• Rocznik: 2014
• Tom: Vol. 39, No. 2
• Strony: 199--202
• Opis fizyczny: Bibliogr. 6 poz., tab., wykr.

Twórcy

autor

Batko W.

• AGH University of Science and Technology al. A. Mickiewicza 30, 30-059 Kraków, Poland

autor

Bal R.

• Politechnical Institute, State Higher Vocational School in Krosno Rynek 1, 38-400 Krosno, Poland

Bibliografia

• 1. Batko W., Bal-Pyrcz R. (2006), Uncertainty analysis in the assessment of long – term noise indicators, Archives of Acoustics, 31, 4, 253–260.
• 2. Batko W., Przysucha B. (2010), Determination of the Probability Distribution of the Mean Sound Level, Archives of Acoustics, 35, 4, 543–550.
• 3. Batko W., Przysucha B. (2011), Random distribution of long-term indicators of variable emission conditions, Acta Physica Polonica A, 119, 6-A: Acoustic and biomedical engineering, 1086–1090.
• 4. BatkoW., Przysucha B. (2012), Uncertainty assessment of index M, Acta Physica Polonica A, 121, 1-A: Acoustic and biomedical engineering, 156–159.
• 5. Guide to the Expression of Uncertainty Measurement. International Organization for Standardization, ISBN 92-67-10188-9, (1995), Polish Edition:Wyrażanie niepewności pomiaru – Przewodnik.
• 6. Jarque C.M., Bera A.K. (1987), Tests of Observations and Regression Regression Residualed, International Statistical Review, 55, 163–172