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BSI BS EN 61094-8:2012

Electroacoustics. Measurement microphones -- Methods for determining the free-field sensitivity of working standard microphones by comparison
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BSI BS EN 61094-8:2012

Electroacoustics. Measurement microphones -- Methods for determining the free-field sensitivity of working standard microphones by comparison

PUBLISH DATE 2013
PAGES 34
BSI BS EN 61094-8:2012

This part of the IEC 61094 series is 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 or IEC 61094-5, and where factors given in IEC/TS 61094-7 have been applied,

  • IEC 61094-6,

  • 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.

NOTE 1 This part of IEC 61094 is also applicable to laboratory standard microphones meeting the requirements of IEC 61094-1, noting that these microphones also meet the electroacoustic specifications for working standard microphones.

NOTE 2 This part of IEC 61094 is also applicable to combinations of microphone and preamplifier where the determined sensitivity is referred to the unloaded output voltage of the preamplifier.

NOTE 3 Other devices, for example, sound level meters can be calibrated using the principles of this part of IEC 61094, but are not within the scope of this standard.

SDO BSI: British Standards Institution
Document Number EN 61094-8
Publication Date May 31, 2013
Language en - English
Page Count 34
Revision Level
Supercedes
Committee EPL/29
Publish Date Document Id Type View
Jan. 31, 2013 BS EN 61094-8:2012 Revision
May 31, 2013 BS EN 61094-8:2012 Consolidated