IEC/TS 61094-7-ed.1.0

Measurement microphones - Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones

STANDARD published on 22.5.2006

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The information about the standard:

Designation standards: IEC/TS 61094-7-ed.1.0
Publication date standards: 22.5.2006
SKU: NS-408039
The number of pages: 21
Approximate weight : 63 g (0.14 lbs)
Country: International technical standard
Category: Technical standards IEC

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Electroacoustics

Annotation of standard text IEC/TS 61094-7-ed.1.0 :

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. Cette partie de la CEI 61094: - donne un polynome deduit dun ajustement par des moindres carres de donnees en provenance de plusieurs laboratoires pour les differences entre le niveau defficacite en champ libre et le niveau defficacite en pression des microphones etalons de laboratoire repondant aux specifications de la CEI 61094-1, - permet la determination du niveau defficacite en champ libre de microphone etalon de laboratoire sous incidence normale dans lair en ajoutant les valeurs de ces differences au niveau defficacite en pression, - donne des tables de valeurs pour le polynome, pour une gamme de frequence et de temperature, - sapplique quand un etalonnage convenable en champ libre nest pas disponible.