Published October 11, 2018
| Version v1
Conference paper
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COMPOSITE MATERIAL SOUND ABSORPTION DETERMINATION BY MEANS OF STANDING WAVE TUBE MEASUREMENT
- 1. CTU in Prague, Faculty of Electrical Engineering, Department of Physics, 166 27 Prague, Czech Republic
- 2. STU in Bratislava, Faculty of Civil Engineering, Department of Material Engineering, Radlinského 11, 81101 Bratislava, Slovakia
Description
The sound absorption material property knowledge, opens new application possibilities of material.
Absorptive materials can be used for sound pressure level attenuation in interior spaces (usually
acoustic diffuse field), as well as exterior spaces (free acoustic field). The presented work is focused
on sound absorption coefficient measurement techniques. In respect to this purpose, the standing
wave impedance tube measurement device was assembled. Reference samples from composite based
EVA (ethylene vinyl acetate) material were created. Samples were used for interlaboratory
comparative sound absorption measurement test. Measurement results comparison is presented here.
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