电声学 声强测量仪 压强传声器配对的测量

[中文适用范围]： 主要目的是确保根据 ISO 9614-1 用于确定声功率的声强测量的准确性。规定了用于测量声音强度的仪器的性能要求， [外文原描述]： Applies to instruments which detect sound intensity by pairs of spatially separated pressure sensing microphones and specifies performance requirements for instruments used for the measurement of sound intensity, and their associated calibrators. The purpose of this standard is to ensure the accuracy of measurements of sound intensity applied to the determination of sound power in accordance with ISO 9614. To meet the requirements of that standard, instruments are required to analyse the sound intensity in one-third octave or octave bands, and optionally to provide A-weighted band levels.