標(biāo)準(zhǔn)號：DIN EN ISO 9614-3-2009
中文標(biāo)準(zhǔn)名稱：聲學(xué),聲強(qiáng)法測定噪聲源的聲功率級,第3部分:掃描測量法(ISO 9614-3:2002),EN ISO 9614-3:2009的德文版本
英文標(biāo)準(zhǔn)名稱：Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning (ISO 9614-3:2002); German version EN ISO 9614-3:2009
標(biāo)準(zhǔn)類型：Z32
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：Z32
國際標(biāo)準(zhǔn)分類號：17.140.20
引用標(biāo)準(zhǔn)：IEC 60651;IEC 60942-1997;IEC 61043-1993;IEC 61260;GUM 1993
適用范圍：This standard specifies a precision method for measuring the component of sound intensity normal to a measurement surface enclosing the sound source of which the sound power level is to be determined. The measurements are performed by scanning a intensity probe over the measurement surface, either manually or by means of a mechanical system. The octave band or band limited weighted sound power level is calculated from the measured one-third octave band values. The method is applicable to sources producing noise stationary in time, and is applicable in specific test environments.