标准摘要
[中文适用范围]： IEC 61094 的这一部分 - 针对 IEC 61094-1 中规定的实验室标准麦克风的自由场和压力灵敏度水平之间的差异，给出了从多个实验室数据的最小二乘拟合得出的多项式函数， - 能够确定空气中零度入射的实验室标准麦克风的自由场灵敏度水平，通过将这些差异值添加到压力灵敏度水平， - 给出一系列频率和温度的多项式函数的表格值， - 适用于以下情况：没有合适的自由场校准。 [外文原描述]： This part of IEC 61094 - gives a polynomial function derived from a least square fit to data from several laboratories, for the differences between free field and pressure sensitivity levels of laboratory standard microphones as specified in IEC 61094-1, - enables determination of the free field sensitivity level of a laboratory standard microphone for zero degrees incidence in air by adding values of these differences to the pressure sensitivity level, - gives tabulated values for the polynomial function for a range of frequency and temperature, - is applicable when a suitable free field calibration is not available.
英文名称Measurement microphones - Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones