GBT6881.2-2002-声学声压法测定噪声源声功率级混响场中小型可移动声源工程法第1部分：硬壁测试室比较法.pdf

《GBT6881.2-2002-声学声压法测定噪声源声功率级混响场中小型可移动声源工程法第1部分：硬壁测试室比较法.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、17.140.01撰2中华人民共和国国家标准GB/T6881.2-2002idtISO3743-1:1994声学声压法测定噪声源声功率级混响场中小型可移动声源工程法第1部分:硬壁测试室比较法Acoustics-Determinationofsoundpowerlevelsofnoisesources-Engineeringmethodsforsmall,movablesourcesinreverberantfield-Part1:Comparisonmethodforhard-walledtestr

2、ooms2002一03一26发布2002一12一01实施中华人民共和国发布国家质量监督检验检疫总局Gs/T68812-2002目次前言··················································································································⋯⋯IISO前言·······························································

3、·············································⋯⋯I0引言···············································································································⋯⋯11范围···········································································。········

4、···························⋯⋯22引用标准·········································································································⋯⋯33定义·······························。·······································。··································

5、·····⋯⋯44硬壁测试室的要求···········································，···················································一55仪器···············································································································⋯⋯66被测声源的安装和运行··········

6、······························································.·······.....·.⋯⋯67测试室中的测量································································································⋯⋯78声功率级的计算·························································

7、······························⋯⋯“·‘”’‘·99要记录的资料···································································································⋯⋯91。报告内容··················。···。····。·····································································

8、···。·⋯⋯10附录A(提示的附录)参考资料···。。·······························································....·...⋯⋯nGB/T68812-2002前言本标准根据国际标准ISO3743-1:1994《声学声压法测定噪声源声功率级混响场中小型可移动声源工程法第1部分:硬壁测试室比较法》对GB/T6881-1986进行修订。本标准是声压法测定噪声源声功率级的系列标准之一，等同于ISO374