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首页> 外文期刊>Acta acustica united with acustica >Determination of Measurement Uncertainties in Building Acoustics by Inter laboratory Tests. Part 1: Airborne Sound Insulation
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Determination of Measurement Uncertainties in Building Acoustics by Inter laboratory Tests. Part 1: Airborne Sound Insulation

机译：通过实验室间测试确定建筑声学中测量不确定度。第1部分：机载隔音

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Measurements in building acoustics are as any other measurement prone to uncertainties. These uncertainties can't be determined easily because there is no model that links the uncertainty of the measurand to the real measurement situation. Therefore, standard deviations derived from interlaboratory tests are used to estimate the standard uncertainties. Tests with different types of specimens are analysed. Different types of standard deviations are distinguished, namely the standard deviation of reproduciblility, the in-situ standard deviation and the standard deviation of repeatability. The calculation is performed for the one-third octave band values and for the single number ratings. The effect of different frequency ranges on the uncertainty of the single number ratings is also investigated. The behaviour of different types of test specimens is found to be similar, in general, even though some types of test specimens show slightly larger or smaller uncertainties than the average in some frequency ranges. Finally, average values are derived which are standardised in ISO 12999-1. Further parts of this investigation will cover impact noise, installation noise and absorption measurements.
机译：建筑物声学中的测量与其他容易产生不确定性的测量一样。无法确定这些不确定性，因为没有模型将被测量的不确定性与实际测量情况联系起来。因此，实验室间测试得出的标准偏差用于估计标准不确定度。分析了不同类型样品的测试。区分不同类型的标准偏差，即可再现性标准偏差，原位标准偏差和可重复性标准偏差。计算是针对三分之一倍频程的频段值和单个数字等级进行的。还研究了不同频率范围对单个数字额定值的不确定性的影响。通常，即使某些类型的样品在某些频率范围内显示出比平均水平稍大或小的不确定性，通常也会发现不同类型的样品的行为相似。最后，得出平均值，该平均值在ISO 12999-1中进行了标准化。该调查的其他部分将涵盖冲击噪声，安装噪声和吸收率测量。

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