International Standards and Conformity Assessment for all electrical, electronic and related technologies

CLC/SR 29

Electroacoustics

 

Project

Reference EN 61094-8:2012/AC:2013
Title Measurement microphones — Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison
Project Number 24662
Abstract/Scope IEC 61094-8:2012 applicable to working standard microphones meeting the requirements of IEC 61094-4. It describes methods of determining the free-field sensitivity by comparison with a laboratory standard microphone or working standard microphone (where applicable) that has been calibrated according to either; IEC 61094-3; IEC 61094-2; IEC 61094-5; IEC 61094-6; or this part of IEC 61094. Methods performed in an acoustical environment that is a good approximation to an ideal free-field (e.g. a high quality free-field chamber), and methods that use post processing of results to minimise the effect of imperfections in the acoustical environment, to simulate free-field conditions, are both covered by this part of IEC 61094. Comparison methods based on the principles described in IEC 61094-3 are also possible but beyond the scope of this part of IEC 61094.
Status
Published

Status

Current Stage code 6060
Current Stage code date 2013-01-18
Current Stage code deadline  
Deadline date for vote  

Legal

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Mandate(s)  
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Details

IEC Technical Body IEC/TC 29
Reference Document  
ICS  
Keywords Microphone; Measurement; Free-field; Calibration
Note Corrigendum issued in January 2013 due to a mistake in the three language titles.
A-Deviation(s)  
Special National Condition(s)  

Environment

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Categories - Aspects
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Information

History

Stage
Date
Deadline Date
Documents
6060 2013-01-18   export to doc file  EN  FR  DE
1099 2013-01-11    

Implementation Dates

date of Ratification (DOR) (1)  
date of Availability (DAV) (2) 2013-01-18
date of Announcement (DOA) (3) -
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -

Relations

Supersedes  
Superseded by  
Normative reference (6)  

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved


(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat


(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level


(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement


(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn


(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.