Koefisien Absorbsi Bunyi dan Impedansi Akustik dari Panel Serat Kulit Jeruk dengan Menggunakan Metode Tabung
DOI:
https://doi.org/10.25077/jfu.6.4.331-335.2017Abstract
Penelitian ini menentukan koefisien absorbsi bunyi dan impedansi akustik dari panel serat kulit jeruk menggunakan metode tabung. Sampel panel akustik divariasikan ketebalannya dari 0,2 cm, 0,4 cm, 0,6 cm,0,8 cm dan 1 cm. Pengukuran dilakukan pada frekuensi dari 800 Hz, 1000 Hz, 1500 Hz, 2000 Hz dan 2500 Hz. Hasil penelitian memperlihatkan bahwa nilai koefisien absorbsi bunyi paling tinggi adalah 0,99 pada frekuensi 1500 Hz untuk ketebalan 1 cm. Nilai impedansi akustik tertinggi 5,03 pada frekuensi 1500 Hz dengan ketebalan 1 cm.
Kata kunci : koefisien absorbsi bunyi, impedansi akustik, serat kulit jeruk, metode tabung
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Copyright (c) 2017 Azri Risandi, Elvaswer Elvaswer
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