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

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Hardcopy , PDF

Language(s)

English - Italian

Published date

01-01-1997

Publisher

Comitato Elettrotecnico Italiano

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.

Committee	CT 29/87
DevelopmentNote	Classificazione CEI 29-28 (09/2001) 1ED 1997 Edition is valid until 19-07-2019. (04/2017)
DocumentType	Standard
Pages	30
PublisherName	Comitato Elettrotecnico Italiano
Status	Current

Standards	Relationship
IEC 61094-3:2016	Identical
EN 61094-3:2016/AC:2017-01	Identical

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 61094-2:2009	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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CEI EN 61094-3 : 1997

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

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