GBT6881.1-2002-声学声压法测定噪声源声功率级混响室精密法.pdf

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1、17.140.01IzCS32中华人民共和国国家标准Gs/'r6881.1一2002idtISO3741:1999声学声压法测定噪声源声功率级混响室精密法Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforreverberationrooms2002一03一26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/T6881.1-2002目次前言···················

2、···················································。·····································⋯⋯1ISO前言·...................................................................······································⋯⋯N。引言······。···。···············。········。···。·······。····。·········

3、················································⋯⋯11范围···································································································价········⋯⋯22引用标准·。·······。···························································································

4、····⋯⋯23术语和定义····························································，······················，··················⋯⋯34测量不确定度············。···。····。·············。··································，····························⋯⋯45声学环境·······。····························。··

5、······························································⋯⋯55.1概述········································································································⋯⋯55.2测试室的容积和形状·.................................................................................

6、........55.3测试室吸收的要求········。···。····················································...··········.·.....·.⋯⋯65.4背景噪声要求··········································。····················。·····························⋯⋯65.5温度、湿度、气压的要求··········································

7、············.·..·.·.···.....·..·..·....⋯⋯66仪器·.......................................................···············。····。···············。·········。·······⋯⋯66.1概述········································································································。··⋯

8、66.2校准··························································。·············。······。·········。····。··