Sound absorption characteristics of a thin, light weight fabric in single-leaf and in double-leaf configurations

Authors

Mary Jane Flores ⋅ PH Department of Physics, University of San Carlos
Marian Salumbides ⋅ PH Department of Physics, University of San Carlos
Adonis Flores ⋅ PH Department of Physics, University of San Carlos
Roland Otadoy ⋅ PH Department of Physics, University of San Carlos
Herman Van Engelen ⋅ PH Department of Physics, University of San Carlos and Water Resources Center, University of San Carlos

Abstract

Sound absorption coefficient measurements of a lightweight fabric attached to rigid PVC ring in single-leaf and in double-leaf configurations are reported. For the single-leaf, a shift in absorption peak toward the lower frequency is generally observed as surface mass density of the fabric and backing (air space between sample and the hard reflector) are increased. The observed effect due to backing is attributed to cavity resonances. A similar shift in absorption peaks was also observed with double-leaf partition as influenced by backing. However, the system seemed practically unaffected by the increase in enclosed air cavity length. This means that the range of air cavity lengths used in the experiment was not effective in altering the absorption of the samples.

Downloads

Issue

2009: Proceedings of the 27th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2009-4A-01

Section

Instrumentation and Optics

Published

2009-10-28

How to Cite

[1]

MJ Flores, M Salumbides, A Flores, R Otadoy, and HV Engelen, Sound absorption characteristics of a thin, light weight fabric in single-leaf and in double-leaf configurations, Proceedings of the Samahang Pisika ng Pilipinas 27, SPP-2009-4A-01 (2009). URL: https://proceedings.spp-online.org/article/view/SPP-2009-4A-01.