摘要
本文按《测量不确定度表示指南》和《测量不确定度评定与表示》规定的程序和方法,对引起内燃机噪声声功率级测量结果不确定度的因素(不包括声源本身的影响)及其累积效应进行不确定度分析与评定,旨在提高噪声测量结果的质量,促进降噪工作开展,并使测量不确定度评定在内燃机行业得到全面推广。
According to 'Guide to the Expression of Uncertainty in Measurement' and 'the Evaluation and Expression of Uncertainty in Measurement' , this paper discussed and estimated the cumulative effects of all causes (not include the affect of sound source) of measurement uncertainty in I. C. engine sound power level measurement. It aimed at improving the precision of the result of noise measurement , promoting the study of reducing I. C. engine noise and making measuring uncertainty widely used in the I. C. engine industry.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2003年第1期70-74,共5页
Chinese Internal Combustion Engine Engineering
