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ELECTROACOUSTICS - MEASUREMENT MICROPHONES - PART 3: PRIMARY METHOD FOR FREE-FIELD CALIBRATION OF LABORATORY STANDARDMICROPHONES BY THE RECIPROCITY TECHNIQUE

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Hardcopy , PDF

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English

Published date

01-01-2016

Publisher

National Standards Authority of Ireland

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National Foreword
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Reference environmental conditions
5 Principles of free-field calibration by reciprocity
6 Factors influencing the free-field sensitivity
7 Calibration uncertainty components
Annex A (informative) - Values for the position of the
        acoustic centre
Annex B (normative) - Values of the air attenuation
        coefficient
Annex C (informative) - Environmental influence on
        the sensitivity of microphones
Annex D (informative) - Application of time selective
        techniques for removal of unwanted reflections
        and acoustic interference between microphones
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Defines a primary method of determining the complex free-field sensitivity of laboratory standard microphones so as to establish a reproducible and accurate basis for the measurement of sound pressure under free-field conditions. Pertains to laboratory standard microphones meeting the requirements of IEC 61094-1.

DevelopmentNote	Supersedes IEC 60486. (02/2002) For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType	Standard
Pages	76
PublisherName	National Standards Authority of Ireland
Status	Current
Supersedes	IEC 60486:1974

Standards	Relationship
NBN EN 61094-3 : 2016	Identical
NF EN 61094-3 : 1996	Identical
UNE-EN 61094-3:2017	Identical
BS EN 61094-3:2016	Identical
SN EN 61094-3 : 2016	Identical
EN 61094-3:2016/AC:2017-01	Identical
DIN EN 61094-3:2015-09 (Draft)	Identical

EN 61094-8:2012/AC:2013	Measurement microphones — Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison
IEC TS 61094-7:2006	Measurement microphones - Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones
EN 61094-1:2000	Measurement microphones - Part 1: Specifications for laboratory standard microphones
IEC 61094-1:2000	Measurement microphones - Part 1: Specifications for laboratory standard microphones
EN 61094-2:2009	Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
ISO 9613-1:1993	Acoustics Attenuation of sound during propagation outdoors Part 1: Calculation of the absorption of sound by the atmosphere
IEC 61094-8:2012	Measurement microphones - Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison
IEC 61094-2:2009	Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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I.S. EN 61094-3:2016

ELECTROACOUSTICS - MEASUREMENT MICROPHONES - PART 3: PRIMARY METHOD FOR FREE-FIELD CALIBRATION OF LABORATORY STANDARDMICROPHONES BY THE RECIPROCITY TECHNIQUE

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