DIN EN 60942-2004 电声学.音响校准器

标准号：DIN EN 60942-2004
中文标准名称：电声学.音响校准器
英文标准名称：Electroacoustics - Sound calibrators (IEC 60942:2003); German version EN 60942:2003
标准类型：M72
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：M72
国际标准分类号：17.140.50
适用范围：This International Standard specifies the performance requirements for three classes of sound calibrator: laboratory standard (class LS), class 1 and class 2. Tolerance limits are smallest for class LS and greatest for class 2 instruments. Class LS sound calibrators are normally used only in the laboratory; class 1 and class 2 are considered as sound calibrators for field use. Revision of the IEC standard of 1997-11 provides correct consideration of the measurement uncertainty of the testing laboratory and contains additional requirements concerning EMC.#,,#