Studi Awal Pengukuran Koefisien Hamburan Dan Pola Hamburan Concaveconvex Difuser Dari Tempurung Kelapa Muda

Dwiyanti, Evi (2017) Studi Awal Pengukuran Koefisien Hamburan Dan Pola Hamburan Concaveconvex Difuser Dari Tempurung Kelapa Muda. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peneltian tentang pengukuran koefisien hamburan dan pola hamburan pada concave-convex difuser dengan tujuan untuk mengetahui nilai koefisien hamburan concave-convex difuser dan mengetahui pola hamburan concave-convex difuser. Pada penelitian ini digunakan reverberation room dan anechoic chamber fisika fmipa ITS. Berdasarkan hasil pengukuran yang telah dilakukan disimpulkan bahwa pada sudut 0 derajat nilai yang paling besar adalah difuser dengan pola concave 100% pada frekuesi 500 Hz yaitu 0,84.Pada sudut 30 derajat nilai yang paling besar adalah difuser dengan pola concave 100% pada frekuensi 250 Hz yaitu 0,53 . Pada sudut 60 derajat nilai yang paling besar pada pola concave-convex pada frekuensi 4000 Hz yaitu 0,99. Pada pola hamburan, berdasarkan pengukuran didapat bahwa semakin tinggi frekuensi sumber bunyi yang diberikan semakin besar pula penambahan SPL yang terjadi. Pada pola hamburan difuser convex 50% memiliki karakter yang signifikan di frekuensi tinggi. ================================================================================================================== Research on measurement of scattering coefficient and scattering patterns in concave-convex diffuser to determine the value of the scattering coefficient concave-convex diffuser and determine the pattern of concave-convex scattering diffuser. This research used reverberation room and anechoic chamber in ITS Physics Laboratory. Results of measurements that have been carried out concluded that the angle of 0 degrees greatest value is the diffuser with a concave pattern of 100% at 500 Hz which frekuesi 0,84.Pada 30 degree angle greatest value is the diffuser with a concave pattern of 100% at a frequency of 250 Hz is 0.53. At an angle of 60 degrees the largest value in the concave-convex pattern at a frequency of 4000 Hz is 0.99. In the scattering patterns, found that the higher the frequency of the sound source is given the greater the addition of SPL happened. In the scattering pattern convex diffuser 50% had a significant character in the high frequencies.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Scattering coeffient, Scattering pattern, Young coconut Shell Koefisien hamburan, Pola hamburan, Tempurung kelapa muda.
Subjects: Q Science > QC Physics
Divisions: Faculty of Mathematics and Science > Physics > (S1) Undergraduate Theses
Depositing User: EVI EVI DWIYANTI
Date Deposited: 02 May 2017 04:49
Last Modified: 02 May 2017 04:49
URI: http://repository.its.ac.id/id/eprint/3452

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