团体标准 车载音频 扬声器性能要求及测试方法 Vehicle audio — Performance requirements and methods of measurement for loudspeaker 2024–10–15 发布 2024–12–15 实施 ICS 33.160.30 CCS M 72 T/CAIACN 010—2024 发布 全国团体标准信息平台 全国团体标准信息平台 T/CAIACN 010 —2024 I 目 次 前言 ................................ ................................ .................... III 1 范围 ................................ ................................ .................... 1 2 规范性引用文件 ................................ ................................ .......... 1 3 术语和定义 ................................ ................................ .............. 1 4 测试条件 ................................ ................................ ................ 1 4.1 测试的标准大气条件 ................................ ................................ . 1 4.2 测量条件 ................................ ................................ ............ 1 4.3 安装方式 ................................ ................................ ............ 2 4.4 声学环境 ................................ ................................ ............ 2 4.5 扬声器和测量传声器的位置 ................................ ............................ 3 4.6 检验装置以及设备 ................................ ................................ ....4 5 测量信号 ................................ ................................ ................ 6 5.1 概述 ................................ ................................ ................ 6 5.2 正弦信号 ................................ ................................ ............ 6 5.3 正弦扫频信号 ................................ ................................ ........ 7 5.4 Hann 突发信号 ................................ ................................ .......7 5.5 宽带噪声信号 ................................ ................................ ........ 7 5.6 窄带噪声信号 ................................ ................................ ........ 7 5.7 脉冲信号 ................................ ................................ ............ 7 6 扬声器外观及尺寸 ................................ ................................ ........ 8 7 扬声器性能 ................................ ................................ .............. 8 7.1 极性 ................................ ................................ ................ 8 7.2 绝缘 ................................ ................................ ................ 8 7.3 耐压 ................................ ................................ ................ 8 7.4 纯音检听 ................................ ................................ ............ 9 7.5 阻抗及其派生特性 ................................ ................................ ....9 7.6 输入特性 ................................ ................................ ........... 10 7.7 频率响应特性 ................................ ................................ .......11 7.8 输出功率（声功率） ................................ ................................ .14 7.9 指向特性 ................................ ................................ ........... 15 7.10 幅度非线性 ................................ ................................ ........ 16 7.11 杂散磁场 ................................ ................................ .......... 17 8 扬声器性能要求 ................................ ................................ ......... 18 参考文献 ................................ ................................ ................. 19 全国团体标准信息平台 T/CAIACN 010 —2024 II 全国团体标准信息平台