AWA6228型声级计监测室内噪声的问题探讨

Discussion on the Problems of Monitoring Indoor Noise Using AWA6228 Type Sound Level Meter

分析了ISO标准中使用噪声评价曲线评价噪声的方法,用实测数据对NR值与A声级之间的关系进行了探讨。对AWA6228声级计的倍频带声压级和A声级监测结果进行了理论验证,并且找到了A声级、Z声级、C声级与倍频带声压级之间的对应关系。通过模拟实验验证了突发噪声对A声级的影响程度和噪声叠加的理论计算值与实测值之间的吻合程度。

The evaluation methodology of Noise Rating Curve in ISO is analyzed. The relationship between A levels and NR value was discussed using the real data. The results of octave band sound pressure level and A sound level were tested using AWA6228 sound level meter. The corresponding relationships between A sound level, Z sound level, C sound level, and theoctave band sound pressure level were found. The influence and superposition of noise of sudden noise on A sound level showed a high consistent between the lab experiment and the real data.