I.S. EN 61094-2:2009&A1:2022
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Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
Hardcopy , PDF
English
04-04-2022
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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Reference environmental conditions
5 Principles of pressure calibration by reciprocity
6 Factors influencing the pressure sensitivity of microphones
7 Calibration uncertainty components
Annex A (normative) Heat conduction and viscous losses in a closed cavity
Annex B (normative) Acoustic impedance of a capillary tube
Annex C (informative) Examples of cylindrical couplers for calibration of microphones
Annex D (informative) Environmental influence on the sensitivity of microphones
Annex E (informative) Methods for determining microphone parameters
Annex F (informative) Physical properties of humid air
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