Publication: Aislamiento a ruido aéreo entre locales: estimación de la incertidumbre de medida
Loading...
Identifiers
Publication date
2011-05
Defense date
2011-05-31
Authors
Advisors
Tutors
Journal Title
Journal ISSN
Volume Title
Publisher
Impact
Export
Abstract
Este documento trata de analizar la incertidumbre de medida asociada a la realización de un ensayo de aislamiento acústico a ruido aéreo entre locales. Para ello, se calcula la incertidumbre de medida que introduce cada una de las diferentes magnitudes medibles que definen los distintos índices de valoración de aislamiento a ruido aéreo entre locales. Previamente, se define el concepto conocido como incertidumbre de medida en líneas generales y se ilustra un ejemplo sencillo para que el lector que desconozca el término, pueda analizar posteriormente su implicación en medidas de aislamiento acústico. Posteriormente, se realiza un análisis de la incertidumbre de medida para diferentes escenarios de medida, que culmina en dos ejemplos prácticos. En relación a este mismo análisis, también se cuantifica la pérdida de información que se produce en el cálculo del valor de aislamiento acústico global que caracteriza un paramento. En concreto, se plantean tres problemas derivados del uso de la norma internacional que permite obtener dicho valor. Por último, este escrito se complementa con una breve descripción teórica sobre aislamiento acústico y un modesto estudio de los métodos de medida normalmente empleados en ensayos “in situ”. Dicha descripción teórica pretende ser una introducción para el lector que desconoce la materia, y el estudio de los métodos de medida, un análisis objetivo que justifica las directrices a cumplir establecidas por la normativa internacional (las cuales permiten establecer un primer contacto en relación al cálculo de incertidumbre de medida).
This paper seeks to analyze the measurement uncertainty associated with conducting a trial of airborne sound insulation between rooms. To do this, we calculate the measurement uncertainty introduced by each of the various measurable quantities that define the different assessment rates airborne sound insulation between rooms. Previously, we define the concept known as measurement uncertainty in general and we illustrate a simple example for the reader that not knows the term can analyze its involvement in measures of acoustic insulation. Subsequently, we do an analysis of measurement uncertainty for different measurement scenarios, finishing in two examples. Related with this same analysis, we also quantify the information loss that occurs in calculating the overall sound insulation value that characterizes a facing. In particular, three problems arise from the use of the international standard for obtaining this value. Finally, this paper is complemented by a brief theoretical description of acoustic insulation and a modest study of the measurement methods normally used in “in situ” tests. This theoretical description is an introduction to readers unfamiliar with the area, and the study of methods of measurement, an objective analysis that warrants meet the guidelines established by international standards (which permits to establish a first contact in relation to the calculation measurement uncertainty).
This paper seeks to analyze the measurement uncertainty associated with conducting a trial of airborne sound insulation between rooms. To do this, we calculate the measurement uncertainty introduced by each of the various measurable quantities that define the different assessment rates airborne sound insulation between rooms. Previously, we define the concept known as measurement uncertainty in general and we illustrate a simple example for the reader that not knows the term can analyze its involvement in measures of acoustic insulation. Subsequently, we do an analysis of measurement uncertainty for different measurement scenarios, finishing in two examples. Related with this same analysis, we also quantify the information loss that occurs in calculating the overall sound insulation value that characterizes a facing. In particular, three problems arise from the use of the international standard for obtaining this value. Finally, this paper is complemented by a brief theoretical description of acoustic insulation and a modest study of the measurement methods normally used in “in situ” tests. This theoretical description is an introduction to readers unfamiliar with the area, and the study of methods of measurement, an objective analysis that warrants meet the guidelines established by international standards (which permits to establish a first contact in relation to the calculation measurement uncertainty).
Description
Keywords
Perdida de información, Desviaciones desfavorables, Índice de valoración del aislamiento, Método de comparación, Ley de Propagación de Incertidumbres, Montecarlo