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All Journal Indonesian Review of Physics (IRiP) JURNAL FISIKA PAPUA
Kadir, Muh. Ridwan
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Astronomy Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Analisis Tingkat Kebisingan Menggunakan Sound Level Meter Berbasis Mikrokontroler Hamzah, Hardi; Agriawan, Muhammad Nurkhalis; Kadir, Muh. Ridwan
Jurnal Fisika Papua Vol. 1 No. 2 (2022): Jurnal Fisika Papua
Publisher : Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jfp.v1i2.9

Abstract

Penelitian ini bertujuan untuk menganalisis tingkat kebisingan di Kabupaten Polewali Mandar. Alat yang digunakan untuk mengukur kebisingan yaitu Sound Level Meter (SLM) berbasis mikrokontroler. Jenis mikrokontroler yang digunakan adalah arduino uno. Pengambilan data dilakukan pada kondisi pada saat ramainya penduduk sedang beraktivitas. Pengukuran dilakukan pada siang dengan kondisi cuaca cerah 330C, kelajuan angin STG 5 km/jam, kelembapan 72% dan sesuai dengan tingkat keramaian jalan raya. Hal ini dimaksudkan agar proses pengukuran dapat memperoleh hasil yang akurat. Pengukuran dilakukan di tempat terbuka untuk menghindari pantulan suara. Ketinggian sound level meter sekitar 1,2 meter dari atas permukaan tanah. Jarak pengamat ke sound level meter diatur sekitar 0,5 meter untuk menghindari efek pemantulan bunyi. Penelitian dilakukan di sepuluh titik pada kecamatan yang ada di Kabupaten Polewali Mandar. Diperoleh hasil bahwa sembilan titik kecamatan memiliki rata-rata tingkat kebisingan di bawah nilai ambang batas kebisingan 85 dB dan satu titik yaitu Kecamatan Wonomulyo memiliki rata-rata tingkat kebisingan 86 dB melampaui nilai ambang batas kebisingan.
Seawater Lamp: Utilization of Seawater as an Alternative Energy Source to Generate Electricity Kadir, Muh. Ridwan; Arsyad, Nurul Afiqah; Alaydrus, Syarifah Nuraeni; Puspita, Wenny; Sahrul, Sahrul; Agriawan, Muhammad Nurkhalis; Hamzah, Hardi
Indonesian Review of Physics Vol. 6 No. 1 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v6i1.7070

Abstract

Fishermen are the main livelihood for coastal communities in West Sulawesi. In fishing activities, especially at night, fishermen use lights to attract fish for a greater chance of catching fish. However, fishermen need a supply of electricity to turn on their lights when at sea. Fishermen usually use batteries. This is a significant problem for fishermen because batteries require a relatively high operational level. Researchers found the idea by developing a battery replacement tool to reduce high operating costs. This study aims to utilize seawater as an alternative energy source to overcome the problem of high operational costs for fishermen. The tool developed in this study uses two electrodes (Zn and Cu) placed vertically in a container and then filled with seawater. The two electrodes are connected in series, producing a high output voltage to light an LED. After the initial measurement, the resulting output voltage is 5V and can turn on the LED with a bright enough light. In periodic measurements for 96 hours with data collection every 4 hours, the voltage, current, and power do not decrease significantly, so the seawater lamp is suitable for coastal communities and fishermen's use as lighting when going to sea at night. Series and parallel combinations must be developed to achieve higher voltage and power values ​​and obtain brighter light. The results of this research can be an alternative and renewable energy source that can be widely used.
Co-Authors Alaydrus, Syarifah Nuraeni Arsyad, Nurul Afiqah Hamzah, Hardi Muhammad Nurkhalis Agriawan Puspita, Wenny Sahrul, Sahrul