A Study on the Acoustical Characteristics of Curtain Fabrics (Part 2) -by Transmission Coefficient-

Curtain 감의 음향특성에 관한 연구(제2보) -투과율을 중심으로-

  • Cho Hynn Hok (Dept. of Clothing & Textiles, College of Natural Science, Gyeongsang National University) ;
  • Chung Un Ja (Dept. of Clothing & Textiles, College of Natural Science, Gyeongsang National University) ;
  • Kang Kyung Ja (Dept. of Clothing & Textiles, College of Natural Science, Gyeongsang National University)
  • 조현혹 (경상대학교 자연과학대학 의류학과) ;
  • 정운자 (경상대학교 자연과학대학 의류학과) ;
  • 강경자 (경상대학교 자연과학대학 의류학과)
  • Published : 1982.05.01

Abstract

Succeeding to Report 1, to compare folded curtain fabrics with curtain fabrics, the sound pressure level (SPL) of folded curtain fabrics were measured by sound level meter. Transmission coefficient was calculated by the ratio of incidence sound intensity and transmission sound intensity. The relationship between these values and factors (drape coefficient, porosity) relating to the structure of curtain fabrics were investigated experimentally. The following results were obtained: 1. The transmission coefficient by ratio of sound pressure level was lower than that by ratio of sound intensity. 2. In folded curtain fabrics, difference of SPL was smaller and transmission coefficient generally decreased. 3. The relation between the porosity and transmission coefficient of curtain fabrics is given as plus correlation.

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