Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique— 86 стр.
Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique— 86 стр.
Measurement microphones -- Part 8: Methods for determining the freefield sensitivity of working standard microphones by comparison (IEC 61094-8:2012) (english version)