American National Standard for Measurement Microphones, Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
美国测量传声器国家标准第3部分:用互易技术对实验室标准传声器进行自由场校准的主要方法
This part of IEC 61094 specifies a primary method of determining the complex free-field sensitivity of laboratory standard microphones so as to establish a reproducible and accurate basis for the measurement of sound pressure under free-field conditions; is applicable to laboratory standard microphones meeting the requirements of IEC 610941; is intended for use by laboratories with highly experienced staff and specialized equipment.