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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
    Edition: 2013
    $442.60
    / user per year

Description of BS EN 61094-8:2012 2013

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.



Standard NumberBS EN 61094-8:2012
TitleElectroacoustics. Measurement microphones - Methods for determining the free-field sensitivity of working standard microphones by comparison
StatusDefinitive
Publication Date2013-05-31
Identical National Standard OfIEC 61094-8:2012, EN 61094-8:2012/AC:2013
CorrectsBS EN 61094-8:2012
DescriptorsMicrophones, Capillary tubes, Couplers, Equations, Dimensions, Accuracy, Sound intensity, Electrical testing, Control samples, Acoustic equipment, Error correction, Acoustic properties and phenomena, Laboratory equipment, Acoustoelectric devices, Acoustic measurement, Calibration, Environment (working), Frequencies, Audio equipment, Sensitivity, Heat conduction, Voltage
ICS17.140.50 Electroacoustics
CommitteeEPL/29
ISBN978 0 580 82031 1
PublisherBSI
Pages34

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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