阻抗管声吸收系数的测量

Research Papers Faculty of Materials Science and Technology Slovak University of Technology Pub Date : 2019-09-01 DOI:10.2478/rput-2019-0031

E. Labašová, R. Ďuriš

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引用次数: 6

摘要

摘要:该贡献涉及不同单层或双层材料的吸声系数测量:软木，两层聚乙烯，聚乙烯和毛毡。测量是在我们自己建造的阻抗管上进行的，使用双传声器方法传递函数(ISO 10534-2: 1998)和PULSE测量系统。实验确定了100 ~ 1600 Hz频率范围内的吸声系数值。随后，对这些值进行图形化处理。

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Measurement of the Acoustic Absorption Coefficient by Impedance Tube

Abstract The contribution deals with measurement of acoustic absorption coefficient for different single or double-layer materials: cork, two layers of polyethylene, polyethylene and felt. The measurement was performed on an impedance tube of our own construction, using the two-microphone method transfer function (ISO 10534-2: 1998) and the PULSE measuring system. Values of the acoustic absorption coefficient for the frequencies from 100 Hz to 1600 Hz were determined experimentally. Subsequently, those values were processed graphically.

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Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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