IEC 61094-2 Ed. 2.0 b PDF

IEC 61094-2 Ed. 2.0 b – Electroacoustics – Measurement microphones – Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique

IEC 61094-2:2009 is applicable to laboratory standard microphones meeting the requirements of IEC 61094-1 and other types of condenser microphone having the same mechanical dimensions and specifies a primary method of determining the complex pressure sensitivity so as to establish a reproducible and accurate basis for the measurement of sound pressure. This second edition cancels and replaces the first edition published in 1992. This second edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
– an update of Clause 6 to fulfil the requirements of ISO/IEC Guide 98-3;
– an improvement of the heat conduction theory in Annex A;
– a revision of Annex F: Physical properties of humid air.