PUTRA, ANDY AGUSTA (2017) STUDI AWAL PANEL RESONATOR DAN DIFUSER SILINDER POLYVYNIL CARBONATE. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian studi awal panel resonator dan difuser
silinder polyvynil carbonate dilakukan untuk mengetahui
apakah panel resonator dan difuser dapat dibuat dengan
memakai bahan dasar pipa PVC. Pipa PVC dipilih menjadi
bahan dasar karena memiliki sifat kaku dan juga bentuk
permukaan cekung yang dapat dijadikan difuser. Parameter dari
resonator dan difuser dari panel diuji pada ruangan
reverberation chamber dan anechoic chamber pada
laboratorium fisika akustik, departemen fisika FMIPA ITS.
Pengujian parameter resonator yaitu kemamuan resonansi
dilakukan pada ruangan anechoic dengan metode anechoic
room. Pengujian parameter difuser, pola hamburan dilakukan
dengan metode anechoic, sementara koefisien scattering
dengan menggunakan metode reverberation room. Dari hasil
pengukuran didapat bahwa resonator memiliki frekuensi
resonansi pada 540 Hz. Difuser dengan pipa kecil cocok
ditempatkan pada sudut 0˚ frekuensi 125 Hz dengan nilai S
(koefisien scattering) 0.98. pipa sedang pada sudut 30˚
frekuensi 500 Hz dengan nilai S 0.99. pipa besar pada sudut 0˚
frekuensi 500 Hz dengan nilai S 0.93.
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Research of preliminary study of resonator and diffuser
panels from polyvinyl carbonate cylinder have been done with
the goals to find out if resonator and diffuser panels can be
made from PVC pipe. PVC pipe are choosen because of the
rigid properties and the form of the surface area that fit to be a
diffuser. Parameters of the resonator and diffuser are tested at
the reverberation chamber and anechoic chamber on the
acoustic physics laboratory of Physics, FMIPA ITS. The
parameters measured for the resonator is the resonance ability
is measured by using anechoic chamber method. The
parameters measured for the diffusers, the scattering pattern
measured using anechoic chamber method, and the scattering
coefficent measured using reverberation chamber method.
From the research, resonant ability are found at the 540 Hz
frequency for all three panels. Difuser with small diameter pipe
are best at 0˚ 125 Hz with S 0.98. medium diameter pipe best
at 30˚ 500 Hz with S 0.99. big diameter pipe at 0˚ 500 Hz with
S 0.93.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Akustik, polyvynil carbonate, resonator, Acoustic, polyvynil carbonate, resonator |
| Subjects: | Q Science > QC Physics T Technology > T Technology (General) |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | ANDY AGUSTA PUTRA |
| Date Deposited: | 26 Jan 2017 02:04 |
| Last Modified: | 08 Mar 2019 03:20 |
| URI: | http://repository.its.ac.id/id/eprint/3440 |
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