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Development of an Automatic Portable Calibrator for Tipping Bucket Rain Gauge (TBRG) Using a Load Cell and Simple Water Sensor Rohmah, Dani Zulfia; Jasruddin; Subaer; Utomo, Bagus Satrio
Jurnal Penelitian Pendidikan IPA Vol 10 No 9 (2024): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i9.7634

Abstract

The tipping bucket rain gauge is an automatic rain gauge that can measure rain intensity in mm/hour. Accurate measurement of rain intensity requires calibration of the rain gauge to ensure traceability. Calibration of a tipping bucket rain gauge is related to the volume of water as a calibration medium and time so as to produce a discharge that can be converted into rain intensity. Technological developments can make tipping bucket rain gauge calibration automatic by utilizing an Arduino Mega2560 microcontroller, a load cell and a simple water sensor based on the LM393 comparator IC, and combined with a compact design printed using a three-dimensional printer so that it can be used for ex-situ calibration. The data produced by this tool can be downloaded via the application that was built and produces a file in Excel form.
PRAKIRAAN DAERAH RAWAN LONGSOR DI KOLAKA TIMUR MENGGUNAKAN METODE LOGIKA FUZZY Dwi Zayyan Nurrahma Safitri; Jasruddin; Pariabti Palloan
Inovasi Fisika Indonesia Vol. 15 No. 2 (2026): Vol 15 No 2
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v15n2.p206-217

Abstract

Abstrak Tanah longsor adalah salah satu bencana alam hidrometeorologi yang sering terjadi di Indonesia. Di Provinsi Sulawesi Tenggara, Kabupaten Kolaka Timur termasuk salah satu daerah yang sering mengalami kejadian tanah longsor sehingga berpotensi menimbulkan banyak korban jiwa maupun kerugian material. Untuk menentukan daerah yang memiliki tingkat kerawanan longsor dapat digunakan beberapa metode, salah satunya adalah logika fuzzy. Logika fuzzy merupakan suatu metode yang dapat menerapkan sifat kesamaran pada nilai sehingga mampu mengikuti cara berpikir manusia. Pada penelitian ini, logika fuzzy digunakan untuk menentukan tingkat kerawanan longsor pada setiap kecamatan di Kabupaten Kolaka Timur. Metode logika fuzzy terdiri dari tiga tahapan, yaitu fuzzyfikasi, penalaran, dan defuzzyfikasi. Penelitian ini menggunakan lima parameter sebagai input, yaitu curah hujan, kemiringan, ketinggian, jenis tanah, serta penggunaan lahan, dan menghasilkan keluaran berupa tingkat kerawanan. Hasil penelitian menunjukkan bahwa terdapat tiga kecamatan yang termasuk dalam kelas sangat rawan, empat kecamatan dalam kelas rawan, dan lima kecamatan dalam kelas tidak rawan. Abstract Landslides are one of the hydrometeorological natural disasters that frequently occur in Indonesia. In Southeast Sulawesi Province, East Kolaka Regency is one of the areas where landslides often occur, resulting in significant loss of life and material damage. To determine landslide-prone areas, several methods can be used, one of which is fuzzy logic. Fuzzy logic is a method that applies the concept of vagueness in values and is capable of representing human reasoning. In this study, fuzzy logic is used to determine the level of landslide susceptibility in each district of East Kolaka Regency. The fuzzy logic method consists of three stages: fuzzification, inference, and defuzzification. This study uses five parameters as input variables, namely rainfall, slope, elevation, soil type, and land use, and produces an output in the form of a landslide susceptibility level. The results show that three districts are classified as very highly susceptible, four districts are classified as susceptible, and five districts are classified as not susceptible.