CD Skripsi

Analisa Tingkat Reduksi Kebisingan Oleh Bahan Busa Pada Ruang Tertutup Dalam Skala Laboratorium

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Research has been conducted on the foam material using the method of measurement in a confined space to determine the value of sound reduction produced by the speakers at a particular frequency. Specification foam material has a density of consecutive 0,003, , danand has a volume of 20 cm x 20 cm x 1.7 cm. Each sample was measured at a distance of 30 cm, 50 cm and 70 cm from the speaker. The measurement results were analyzed by distance, density and frequency. Based on research results Insertion Loss value for the sample A, B and C at a frequency of 125 Hz with a distance of 30 cm has a value of 0.7 dB, 1 dB and 1.1 dB. Insertion Loss value is increased with increasing density. Values Insertion Loss increasingly varied at a frequency greater than 500 Hz, this is because the foam material used is not able to drown out the noise with high frequency.
Keyword : Density, Distance, Insertion Loss, Foam Material

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

03 01. 116 (0040)

Penerbit

Pekanbaru : Universitas Riau - FMIPA - Fisika., 2016

Deskripsi Fisik

xvi, 39 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

03 01. 116 (0040)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Dewa

Versi lain/terkait

Lampiran Berkas

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