IEC TS 61094-7:2006
Measurement microphones - Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones

Standard No.

IEC TS 61094-7:2006

Release Date

2006

Published By

International Electrotechnical Commission (IEC)

Latest

IEC TS 61094-7:2006

Replace

IEC 60655:1979

Scope

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.

IEC TS 61094-7:2006 Referenced Document

• IEC 61094-1 Measurement microphones - Part 1: Specifications for laboratory standard microphones
• IEC 61094-2:1992 Measurement microphones; part 2: primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
• IEC 61094-3:1995 Microphones de mesure Partie 3: Méthode primaire pour l'étalonnage en champ libre des microphones étalons de laboratoire par la méthode de réciprocité (Edition 1.0; Replaces IEC 60486: 1974)

IEC TS 61094-7:2006 history

• 2006 IEC TS 61094-7:2006 Measurement microphones - Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones

IEC TS 61094-7:2006 Measurement microphones - Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones has been changed from IEC 60655:1979 Values for the difference between free-field and pressure sensitivity levels for one-inch standard condenser microphones.