ITU-T P 54 SPANISH-1988 SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)《声级计(客观测量室内噪声的仪器)》.pdf

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ITU-T P 54 SPANISH-1988 SOUND LEVEL METERS (APPARATUS FOR THE OBJECTIVE MEASUREMENT OF ROOM NOISE)《声级计(客观测量室内噪声的仪器)》.pdf_第1页
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1、UNIN INTERNACIONAL DE TELECOMUNICACIONESUIT-T P.54SECTOR DE NORMALIZACINDE LAS TELECOMUNICACIONESDE LA UITCALIDAD DE TRANSMISIN TELEFNICAAPARATOS PARA MEDICIONES OBJETIVASSONMETROS (APARATOS PARA MEDIDASOBJETIVAS DEL RUIDO AMBIENTE)Recomendacin UIT-T P.54(Extracto del Libro Azul)NOTAS1 La Recomendac

2、in UIT-T P.54 se public en el Tomo V del Libro Azul. Este fichero es un extracto del LibroAzul. Aunque la presentacin y disposicin del texto son ligeramente diferentes de la versin del Libro Azul, elcontenido del fichero es idntico a la citada versin y los derechos de autor siguen siendo los mismos

3、(Vase acontinuacin).2 Por razones de concisin, el trmino Administracin se utiliza en la presente Recomendacin para designar auna administracin de telecomunicaciones y a una empresa de explotacin reconocida. UIT 1988, 1993Reservados todos los derechos. No podr reproducirse o utilizarse la presente Re

4、comendacin ni parte de la misma decualquier forma ni por cualquier procedimiento, electrnico o mecnico, comprendidas la fotocopia y la grabacin enmicropelcula, sin autorizacin escrita de la UIT.Tomo V - Rec. P.54 1Recomendacin P.54Tomo V - Rec. P.54SONMETROS (APARATOS PARA MEDIDAS OBJETIVAS DEL RUID

5、O AMBIENTE)(modificada en Mar del Plata, 1968 y en Ginebra, 1972)El CCITT recomienda que se adopte el sonmetro especificado en 1, para su uso, en la mayora de los casos,con los filtros de una octava, de media octava y de un tercio de octava, conformes a 2.Referencias1 Norma de la Comisin Electrotcnica Internacional, Sound level meters, publicacin 651 (179) de la CEI,Ginebra, 1979.2 Recomendacin de la Comisin Electrotcnica Internacional, Octave, half-octave and third-octave band filtersintended for the analysis of sounds and vibration, publicacin 225 de la CEI, Ginebra, 1966.

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