ISO及国标对背景噪声最新要求的差异及进一步探究  

Further exploration of background noise requirements for household appliance noise testing in ISO and GB updated standards

作　　者：陈容健 杨振宇 CHEN Rongjian;YANG Zhenyu(Gree Electric Appliances,Inc.of Zhuhai,Zhuhai 519070;School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240)

机构地区：[1]珠海格力电器股份有限公司,广东珠海519070 [2]上海交通大学机械与动力工程学院,上海200240

出　　处：《家电科技》2020年第5期54-58,共5页Journal of Appliance Science & Technology

摘　　要：由于家电产品与其他机器声源相比,其噪声很低,因此背景噪声是影响测试精度的重要因素之一。在实际测试中,背景噪声不可能被完全消除,因此需要对其进行判断并处理,来获得最终的测试结果。国际标准IEC 6070.1及ISO 3745与国标GB 6882对背景噪声提出了不同的要求。在两个标准最新版中,除相对值判据外,又提出了绝对值判据法。在对三个版本标准解读的基础上,又对最新的相对值判据和绝对值判据的选择条件进行了分析与探究。The noise of home appliances is relatively lower than that of other kinds of machines, so background noise is one of the most important factors affecting the accuracy of the test. In actual testing, background noise cannot be completely eliminated, so it needs to be measured and processed to obtain the final test result. The international standard IEC 6070.1, IOS 3745 and the Chinese standard GB 6882 for sound power measurements have requirements for background noise. In the two latest versions, in addition to the relative criterion, an absolute criterion has been proposed. Based on the interpretation of the three editions of the standard, the article analyzes and explores the selection conditions of the latest relative and absolute criteria.

关 键 词：噪声测试 背景噪声 本底噪声 电噪声 测试标准 相对值判据 绝对值判据 

分 类 号：TB52[理学—物理]