I.S. EN 61094-2:2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
01-01-2009
25-04-2022
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Reference environmental conditions
5 Principles of pressure calibration by reciprocity
6 Factors influencing the pressure sensitivity of microphones
7 Calibration uncertainty components
Annex A (normative) Heat conduction and viscous losses in a closed cavity
Annex B (normative) Acoustic impedance of a capillary tube
Annex C (informative) Examples of cylindrical couplers for calibration of microphones
Annex D (informative) Environmental influence on the sensitivity of microphones
Annex E (informative) Methods for determining microphone parameters
Annex F (informative) Physical properties of humid air
This part of International Standard IEC 61094 – is applicable to laboratory standard microphones meeting the requirements of IEC 61094-1 and other types of condenser microphone having the same mechanical dimensions; – 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.
| Committee |
IEC/TC 29
|
| DocumentType |
Standard
|
| ProductNote |
The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| EN 61094-2:2009 | Identical |
| IEC 61094-2:2009 | Identical |
| DIN EN 61094-2:2009-09 | Equivalent |
| BS EN 61094-2:2009 | Equivalent |
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