Active standard | Published: 20/02/2009

IEC 61094-2-ed.2.0

Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
(Electroacoustique - Microphones de mesure - Partie 2: Methode primaire pour l´etalonnage en pression des microphones etalons de laboratoire par la methode de reciprocite)

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Detail information

Designation: IEC 61094-2-ed.2.0

Publication date: 20/02/2009

Pages: 86

Country: International technical standard

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Anotation

IEC 61094-2:2009 is applicable to laboratory standard microphones meeting the requirements of IEC 61094-1 and other types of condenser microphone having the same mechanical dimensions and specifies a primary method of determining the complex pressure sensitivity so as to establish a reproducible and accurate basis for the measurement of sound pressure. This second edition cancels and replaces the first edition published in 1992. This second edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - an update of Clause 6 to fulfil the requirements of ISO/IEC Guide 98-3; - an improvement of the heat conduction theory in Annex A; - a revision of Annex F: Physical properties of humid air. La CEI 61094-2:2009 est applicable aux microphones etalons de laboratoire repondant aux prescriptions de la CEI 61094-1 et aux autres types de microphones a condensateur presentant les memes dimensions mecaniques et specifie une methode primaire de determination de lefficacite en pression complexe de maniere a etablir une base reproductible et exacte pour la mesure de la pression acoustique. Cette deuxieme edition annule et remplace la premiere edition publiee en 1992. Cette deuxieme edition constitue une revision technique. Cette edition inclut les modification techniques majeures suivantes par rapport a ledition precedente: - une mise a jour de lArticle 6 afin detre en conformite avec les exigences du Guide ISO/CEI 98-3; - une amelioration de la theorie de la conduction thermique en Annexe A; - une revision de lAnnexe F: Proprietes physiques de lair humide.

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