Rancang Bangun Sistem Alarm Gempa Bumi Menggunakan Prinsip Gaya Pegas dan Penginderaan Medan Magnetik
DOI:
https://doi.org/10.25077/jfu.7.4.374-378.2018Abstract
Telah dirancang sistem alarm gempa bumi dengan memanfaatkan prinsip gaya pegas dan penginderaan medan magnet menggunakan sensor Efek Hall. Sistem terdiri dari dua perangkat keras yaitu sistem sensor Efek Hall dan mikrokontroler Atmega 328. Pengujian alarm gempa dilakukan dengan menjatuhkan massa dengan memvariasikan ketinggian beban yaitu 20 cm, 30 cm , and 40 cm, variasi jarak jatuh ke sensor 10 - 200 cm, dan variasi massa beban jatuh (200 g, 400 g, dan 600 g). Acuan yang digunakan untuk menandakan getaran gempa bumi adalah 2 MMI (Modified Mercally Intansity) yaitu benda-benda ringan yang digantung bergoyang. Dari hasil pengujian didapatkan bahwa sensor masih peka dalam mendeteksi getaran dengan semua variasi ketinggian dan massa beban pada jarak maksimum 90 cm.
Kata-kunci : sistem alarm gempa, medan magnet, sensor Efek Hall, MMI, Mikrokontroler Atmega 328
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Copyright (c) 2018 Andre Rizki Naldi, Wildian Wildian
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