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All Journal JOURNAL ONLINE OF PHYSICS Academia Open
Chandra Kurniawan
Universitas Bengkulu
Medicine & Pharmacology Physics Public Health

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RANCANG BANGUN PENGUKURAN BAWAH PERMUKAAN AIR DENGAN KENDALI REMOTE CONTROL DAN KOMUNIKASI WIRELESS NRF24L01 Chandra Kurniawan; Zul Bahrum Caniago; Anastasyah Aryani; Riska Ekawita
JOURNAL ONLINE OF PHYSICS Vol. 7 No. 2 (2022): JOP (Journal Online of Physics) Vol 7 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v7i2.18168

Abstract

Telah dirancang sebuah sistem untuk mengukur kedalaman bawah permukaan air. Peta kedalaman bawah permukaan air laut penting sebagai informasi dasar untuk mempelajari ekosistem dasar perairan, zona potensi wisata, dan budidaya perairan. Sistem pengukur kedalaman bawah permukaan air ini menggunakan sensor sonar MB7067 dan mikrokontroler Arduino Uno. Proses pengukuran kedalaman perairan menggunakan kapal yang dikendalikan oleh remote control dan transmisi data untuk pengukuran menggunakan wireless NRF24l01. Penelitian dimulai dari perancangan perangkat lunak menggunakan software arduino 1.6.7, kemudian dilanjutkan dengan perancangan hardware, kalibrasi dan pengujiansistem. Perancangan hardware dilakukan dengan menggabungkan sistem mekanik dan elektronik. Sensor sonar digunakan untuk mendeteksi jarak pengukuran. Remote control akan berkomunikasi dengan sistem elektronik yang berada di kapal. Sensor sonar dikalibrasi dengan menggunakan alat ukur panjang standar. Pengujian komunikasi dilakukan dengan melihat kendali yang diberikan oleh remote control terhadap respon yang diterima oleh sistem elektronik di kapal. Jarak maksimum kapal terhadap pengendali remote control juga diuji untuk mengetahui kemampuan komunikasi sistem wireless NRF24101. Hasil pengujian sensor sonar menunjukkan kedalaman maksimum yang terukur adalah 7 meter. Komunikasi sistem wireless dengan remote control dapat terjadi pada jarak maksimal 10 meter.
Dynamic Variability of Geostrophic Currents in the Western Sumatra Waters: Insights from Altimetry Satellite Data: Variabilitas Dinamis Arus Geostrofik di Perairan Barat Sumatera: Wawasan dari Data Satelit Altimetri Nelva Pebryanty Regina Simbolon; Lizalidiawati Lizalidiawati; Chandra Kurniawan
Academia Open Vol. 8 No. 1 (2023): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.7217

Abstract

The Western Sumatra Waters experience significant influence from mass differentials between the Indian Ocean and Pacific Ocean, resulting in intricate oceanic circulations. This study focuses on geostrophic currents, vital for global climate dynamics, aiming to analyze their distribution and extreme occurrences. Using monthly-averaged geostrophic current data from 2018 to 2020 obtained via Altimetry Satellite imagery, the analysis reveals variations in velocity, magnitude, and direction across months. A notable peak velocity of 1.2 m/s in May 2020 and a minimum velocity of 0.1 m/s in June 2020 are highlighted, offering insights into their complex dynamics and implications for the region's oceanic processes and global climate dynamics. Highlight: Oceanic Interplay: The study highlights the profound influence of mass differentials between the Indian Ocean and Pacific Ocean on intricate oceanic circulations in the Western Sumatra Waters. Geostrophic Current Dynamics: Examining geostrophic currents as a crucial element of global climate dynamics, the research reveals significant variations in velocity, magnitude, and direction across different months. Peak and Minimum Instances: Notable instances are identified, such as the May 2020 peak with currents dispersing from west to southeast, and the June 2020 minimum characterized by erratic directional behavior, shedding light on specific temporal patterns. Keyword: Geostrophic Currents, Oceanic Circulations, Climate Dynamics, Western Sumatra Waters, Altimetry Satellite Data
Co-Authors Anastasyah Aryani Lizalidiawati Lizalidiawati Nelva Pebryanty Regina Simbolon Riska Ekawita Zul Bahrum Caniago