超清版 GB/T 5170.22-2024 环境试验设备检验方法 第22部分：声振试验用混响场试验设备

ICS 19.040
CCS K 04
中华人民共和国国家标准
GB/T 5170.22—2024
环境试验设备检验方法
第22 部分：声振试验用混响场试验设备
Inspection methods environmental testing equipment—
Part 22: The equipment for acoustic vibration test in reverberation field
2024-09-29 发布2025-04-01 实施
国家市场监督管理总局
国家标准化管理委员会发 布

目　　次
前言 ····································································································· Ⅲ
引言 ····································································································· Ⅳ
1 范围 ·································································································· 1
2 规范性引用文件 ······················································································ 1
3 术语和定义 ··························································································· 1
4 组成和原理 ··························································································· 2
5 检验项目 ······························································································ 2
6 检验条件 ······························································································ 2
6.1 环境条件 ························································································· 2
6.2 检验用仪器设备 ················································································· 3
7 检验方法 ······························································································ 3
7.1 检验前准备 ······················································································ 3
7.2 声谱成型特性检验 ··············································································· 3
7.3 声压级示值误差检验 ············································································· 4
7.4 最大总声压级检验 ··············································································· 5
7.5 混响场工作空间声压变化检验 ··································································· 6
7.6 混响时间检验 ···················································································· 6
7.7 最低可用频率检验 ··············································································· 7
7.8 环境噪声检验 ···················································································· 7
8 检验结果和检验周期 ················································································· 7
8.1 检验结果 ························································································· 7
8.2 检验周期 ························································································· 8
附录 A （资料性）　检验中测量不确定度的描述 ······················································· 9
A.1 测量扩展不确定度（U）的计算 ································································ 9
A.2 声压级测量结果的不确定度分析 ······························································ 11
参考文献 ·······················································································