环境噪声监测终端关键参数在线计量研究  

Online Metrological Study on Key Parameters of Environmental Noise Monitoring Terminals

作　　者：姚磊[1] 童宪[2] 缪建[1] 桑帅军[1] 张志凯[1] 

机构地区：[1]浙江省计量科学研究院,杭州310013 [2]中国计量学院,杭州310018

出　　处：《噪声与振动控制》2013年第4期232-236,共5页Noise and Vibration Control

基　　金：浙江省科技厅公益技术研究工业项目(2010C31080)

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。The metrological methods were studied for verification of online metrology of the environmental noise monitoring terminals（ENMT）.Two online metrological methods of frequency weighting using acoustic signal and electrical signal respectively were introduced.The design parameters to be used to verify the ENMT were calculated.The measurement uncertainty was estimated theoretically.Finally,a related measurement uncertainty of an ENMT was assessed experimentally.The results were compared with those of the preset methods,and the feasibility of the online metrological method was verified.

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 

分 类 号：TB132[理学—物理]