DD IEC/TS 61094-7:2006
Current
The latest, up-to-date edition.
Measurement microphones Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones
Hardcopy , PDF
English
31-07-2006
1 Scope
2 Normative references
3 Terms and definitions
4 Reference environmental conditions
5 Background
6 Difference values of free-field and pressure
sensitivity levels
6.1 General
6.2 Data sources
6.3 Expression for the difference between free-field
and pressure sensitivity levels
6.4 Uncertainty on the calculated free-field
sensitivity level
Annex A (informative) - Source data
Annex B (informative) - Acknowledgements
Annex C (informative) - Historical data
Provides a polynomial function derived from a least square fit to data from several laboratories, for the differences between free-field and pressure sensitivity levels of laboratory standard microphones as specified in IEC 61094-1.
| Committee |
EPL/29
|
| DevelopmentNote |
Supersedes 02/202625 DC (07/2006) Supersedes BS 5941(1980). (03/2010)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This part of IEC 61094 - gives a polynomial function derived from a least square fit to data from several laboratories, for the differences between free field and pressure sensitivity levels of laboratory standard microphones as specified in IEC 61094-1, - enables determination of the free field sensitivity level of a laboratory standard microphone for zero degrees incidence in air by adding values of these differences to the pressure sensitivity level, - gives tabulated values for the polynomial function for a range of frequency and temperature, - is applicable when a suitable free field calibration is not available.
| Standards | Relationship |
| IEC TS 61094-7:2006 | Identical |
| IEC 61094-1:2000 | Measurement microphones - Part 1: Specifications for laboratory standard microphones |
| IEC 61094-3:2016 | Electroacoustics - Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique |
| IEC 61094-2:2009 | Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique |
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