噪声剂量计对短持续信号响应方法研究  

Research on Responses of Noise Dosimeters to Short-Duration Signals

作　　者：鲁光军 杜富荣 刘湘衡 白滢[3] 孙勇 熊文波 舒国华 LU Guangjun;DU Furong;LIU Xiangheng;BAI Ying;SUN Yong;XIONG Wenbo;SHU Guohua(Gansu Institute of Metrology,Lanzhou 730070,China;Hunan Sound Instrument Measurement and Control Technology Co.,Ltd.,Hengyang 421007,China;National Institute of Metrology China,Beijing 100029,China;Shandong Institute of Metrology,Jinan 250014,China;Hangzhou Aihua Instruments Co.,Ltd.,Hangzhou 311122,China;Jiaxing Branch of State-owned 4380 Factory,Jiaxing 314001,China)

机构地区：[1]甘肃省计量研究院,兰州730070 [2]湖南省声仪测控科技有限责任公司,衡阳421007 [3]中国计量科学研究院,北京100029 [4]山东省计量科学研究院,济南250014 [5]杭州爱华仪器有限公司,杭州311122 [6]国营四三八0厂嘉兴分厂,嘉兴314001

出　　处：《计量科学与技术》2021年第10期45-49,共5页Metrology Science and Technology

摘　　要：通过研究噪声剂量计在相同幅度、频率、测量持续时间和评判标准声级下猝发音信号的噪声剂量相对于稳态信号的噪声剂量之比(即噪声剂量比),与时间平均声级(等效连续声级)、重复猝发音响应、重复时间以及单个猝发音持续时间的关系,从理论上得出了噪声剂量比对短持续信号响应的误差限。以此作为判定噪声剂量计的剂量功能是否合格的依据,并采用常用的几种噪声剂量计进行实验,实验数据均落在误差限以内。This paper proposes acceptance limits for the nosie dose ratio of noise dosimeters.The ratio of the noise dose of a sound burst signal to the noise dose of the steady-state signal under the same amplitude,frequency,measurement duration and judgment standard sound level,i.e.the noise dose ratio,of a noise dosimeter is studied.The dependence of the noise dose ratio on the time average sound level(i.e.equivalent continuous sound level),repetitive tone burst response,repetition time,and the duration of a single tone burst is also studied.The acceptance limits were used as criteria to evaluate the performance of several noise dosimeters and the test results lay within the limits.

关 键 词：噪声剂量计 噪声剂量 时间平均声级 交换率 

分 类 号：TB95[一般工业技术—计量学]