噪声与振动控制

噪声与振动控制 ›› 2013, Vol. 33 ›› Issue (4): 232-236.DOI: 10.3969/j.issn.1006-1335.2013.04.048

• 9.振动噪声测试技术 • 上一篇    下一篇

环境噪声监测终端关键参数在线计量研究

姚磊 1,  童宪 2，缪建 1，桑帅军 1，张志凯 1   

  1. （ 1. 浙江省计量科学研究院，杭州  310013；  2. 中国计量学院，杭州  310018 ）
  • 收稿日期:2012-09-28 修回日期:2012-11-30 出版日期:2013-08-18 发布日期:2013-08-18
  • 通讯作者: 姚磊

Online Metrological Study on Key Parameters of Environmental Noise Monitoring Terminals

  • Received:2012-09-28 Revised:2012-11-30 Online:2013-08-18 Published:2013-08-18

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摘要： 针对目前环境噪声监测终端在线计量较难实施的现状，研究并提出相应的在线计量方法，着重介绍频率计权参数的在线计量方法，其包括声信号与电信号两种检定方式。通过理论分析计算现场检定用声场装置的设计参数，并通过理论估算频率计权测量不确定度是否满足现场检定的要求；最后通过实验对某监测终端声信号频率计权测量不确定度进行评定，验证了现场检定的可行性。

关键词: 声学, 环境噪声监测终端, 频率计权, 在线计量, 测量不确定度

Abstract: Firstly, metrological methods are put forward to solve the problem of lack of verification method for environmental noise monitoring terminal (ENMT). Frequency weighting, including using acoustic signal and electrical signal, is highlighted to introduce. Secondly, the parameters of the tube which is used to verify the ENMT online is calculated. Meanwhile, the estimated measurement uncertainty is also calculated to see if it meets the requirement of related standard for ENMT online metrology. Last but not the least, the feasibility of online metrological method is validated, by performing experiments and related measurement uncertainty assessment.

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