GB/T 20441.2-2018 Electroacoustics.Measurement microphones.Part 2:Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique (English Version)
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 20441.2-2018
Scope
This part of GB/T 20441 specifies the primary method for determining the complex sound pressure sensitivity of laboratory standard microphones, and establishes a reproducible and accurate basis for sound pressure measurement. This section applies to laboratory standard microphones meeting the requirements of GB/T 20441.1-2010 and other types of condenser microphones with the same dimensions. All quantities in this section are expressed in SI units.
GB/T 20441.2-2018 Referenced Document
GB/T 20441.1-2010 Electroacoustics.Measurement microphones.Part 1:Specifications for laboratory standard microphones
ISO/IEC Guide 98-3 Uncertainty of measurement - Guide to the expression of uncertainty in measurement (GUM:1995). Extension to any number of output quantities
GB/T 20441.2-2018 history
2018GB/T 20441.2-2018 Electroacoustics.Measurement microphones.Part 2:Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique