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EN 61094-3:2016/AC:2017-01

Current
Current

The latest, up-to-date edition.

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

01-20-2017

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.

Committee
SR 29
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

EN 61094-6:2005 Measurement microphones - Part 6: Electrostatic actuators for determination of frequency response
EN 61094-8:2012/AC:2013 Measurement microphones — Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison
BS EN 61094-6:2005 Measurement microphones Electrostatic actuators for determination of frequency response
CEI EN 61094-6 : 2005 MEASUREMENT MICROPHONES PART 6: ELECTROSTATIC ACTUATORS FOR DETERMINATION OF FREQUENCY RESPONSE
BS EN 61094-8:2012 Electroacoustics. Measurement microphones Methods for determining the free-field sensitivity of working standard microphones by comparison
CEI EN 61094-8 : 2013 ELECTROACOUSTICS - MEASUREMENT MICROPHONES - PART 8: METHODS FOR FREE-FIELD CALIBRATION OF WORKING STANDARD MICROPHONES BY COMPARISON
UNE-EN 61094-8:2013 Measurement microphones. Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison
I.S. EN 61094-8:2012 MEASUREMENT MICROPHONES - PART 8: METHODS FOR DETERMINING THE FREE-FIELD SENSITIVITY OF WORKING STANDARD MICROPHONES BY COMPARISON (IEC 61094-8:2012 (EQV))
I.S. EN 61094-6:2005 MEASUREMENT MICROPHONES - PART 6: ELECTROSTATIC ACTUATORS FOR DETERMINATION OF FREQUENCY RESPONSE

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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