Pembuatan alat ukur tingkat Tekanan Suara

Amin , Slamet Handayanto (1999) Pembuatan alat ukur tingkat Tekanan Suara. Undergraduate thesis, FMIPA UNDIP.

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Abstract

Alat ukur tingkat tekanan suara te:Lah dibuat. sistem ini digunakan untuk mengukur tingkat tekanan suara dan hasil pengukuran ditampilkan dalam layar monitor dalam bentuk angka numerik. Sistem ini terdiri atas sensor suara, penguat opsrasional UA 741, Pengubah analog ke digital 0809, PPI 8255, personal komputer dan perangkat lunak dengan menggunakan Bahasa pemrograman Borland Pascal versi 7.0. Hasil uji linieritas sensor menghasilkan persamaan regresi linier Y = (0,21937X - 12,0896), uji fungsi konversi ADC menghasilkan persamaan regresi linier Y =(49,81663X 0,39958),uji PPI 8255 didapatkan hasil bahwa PPI tersebut dapat bekerja dengan baik, dan uji sistem secara terpadu alit mampu menampilkan nilai tekanan suara dari 65,6 dBA -74 dBA dengan persamaan regresi linier Y =(30,97874X + 2023,64014). An instrument measure for sound pressure level has been made. This system used for measure sound pressure by means of entered proportion sound pressure and then out come of measuring bring forward to show into monitor have the shape of numeral. This system is compose of noise sensor, an operational amplifier UA 741, an analog to digital converter 0809, a programmable peripheral interface and personal computer, and software using computer language programming Borland Pascal version 7.0 The result of noise sensor give linear regresion equation Y = (0,21937X - 12,0896), conversion function test ADC give linear regresion equation Y = (49,81663X + 0,39958), PPI test give that instrument can get better result, and from system test be firmly united instrument able to show propotion of sound pressure from 65,6 dBA - 74 dBA ,wt ith linear regresion equation Y :=(30,97874X + 2028,64014).

Item Type:Thesis (Undergraduate)
Subjects:Q Science > QC Physics
Divisions:Faculty of Science and Mathematics > Department of Physics
ID Code:30457
Deposited By:Mr UPT Perpus 1
Deposited On:31 Oct 2011 09:55
Last Modified:31 Oct 2011 09:55

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