CEI EN 61094-3 : 1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ELECTROACOUSTICS - MEASUREMENT MICROPHONES - PART 3: PRIMARY METHOD FOR FREE-FIELD CALIBRATION OF LABORATORY STANDARD MICROPHONES BY THE RECIPROCITY TECHNIQUE
Hardcopy , PDF
English - Italian
01-01-1997
30-07-2025
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 |
Superseded
|
| SupersededBy |
| 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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