IEC 61094-2 Ed. 2.1 b:2022

Current Revision
Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique

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Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique

PUBLISH DATE 2022
PAGES 190

Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique.

IEC 61094-2:2009+A1:2022 is applicable to laboratory standard microphones meeting the requirements of IEC 61094-1 and other types of condenser microphone having the same mechanical dimensions. It 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 and 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.
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