ISO 3743-2-1994 声学 声压法测定噪声源声功率级 混响声场中小型可移动声源的工程法 第2部分:专用混响试验室法

标准号：ISO 3743-2-1994
中文标准名称：声学 声压法测定噪声源声功率级 混响声场中小型可移动声源的工程法 第2部分:专用混响试验室法
英文标准名称：Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms
标准类型：Z32
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Z32
国际标准分类号：17.140.01
适用范围：Cancels and replaces ISO 3743 (1988). Specifies a relatively simple engineering method for determining the sound power levels of small, movable noise sources. In this direct method the A-weighted sound power level of the source under test is determined from a single A-weighted sound pressure level measurement at each microphone position, rather than from a summation of octave-band levels. This method eliminates the need for a reference sound source, but requires the use of a special reverberation test room.