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All Journal International Journal of Electrical and Computer Engineering JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Educatio CYCLOTRON TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika Jurnal Abdi Insani Jurnal Abdi Masyarakat Indonesia Fuse-teknik Elektro
Sifa Nurpadillah
Universitas Garut
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TTGO LORA ESP32: SOLUSI NIRKABEL UNTUK PROTOTIPE PENGENDALIAN PENGINJEKSI ARUS PADA METODE GEOLISTRIK Nurpadillah, Sifa; Susanto, Kusnahadi; Mukhtar, Husneni; Cahyadi, Willy Anugrah; Ikhsan, Akhmad Fauzi; Nurdin, Agung Ihwan; Razzak, Taufiq Abdul; Rahmawati, Dien
TEKTRIKA Vol 8 No 2 (2023): TEKTRIKA Vol.8 No.2 2023
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v8i2.6864

Abstract

Rock resistivity properties obtained using the geo-electric method are used to estimate subsurface soil structures and rock types in geophysical exploration. The data collection process using this geoelectrical method is often carried out in remote areas by installing current electrodes (AB) and potential electrodes (MN) up to 1.5 km away. The success of exploration is highly dependent on the current injection source used. The greater the current used, the deeper exploration that can be carried out. However, the required distance between AB and MN electrodes is getting further and the ABMN electrodes are connected by a cable. This causes the process of collecting data at further distances of electrodes to become more complex. This study discusses a current source prototype for geo-electric methods that can communicate wirelessly with TTGO LoRa ESP32 as a controller. This prototype provides three injection power options: full, medium, and low. Current injection is carried out on a dummy resistor, which acts as earth. When injecting current into the dummy resistor, current measurements obtained using the INA219 sensor gave very consistent measurement results because it had a relative error of < 1% (on 50 ? and 300 ? dummy resistors). When measuring a current of 0.0066 A, the relative error increases to 1.5%. But it still shows good consistency in the INA219 measurement results. In addition, the MAPE for all measurements is within < 10%, which means that the INA219 readings provide excellent results. Key Words: current injector, geo-electrical, INA219, voltage divider, TTGO LoRa.
Co-Authors AA Sudharmawan, AA Adinasa, Muhamad Nu’man Adira Nur Andiyani Agnia, Raza Ahmad Hasyim Akhmad Fauzi Ikhsan Angdarun, M. Bambang Sugiarto Bambang Sugiarto Dewanata, Rachman Pandu Dien Rahmawati Dinda Raihan Tiara Fauzan, Sadam Fauzi Ikhsan, Akhmad Fauzi, Moch Zulfi Helfy Susilawati HELFY SUSLAWATI Helma, Yayang Heryanto, Beni Husneni Mukhtar Iik Muhammad Malik Matin Ikhsan, Akhmad Fauzi Iksan, Akhmad Fauzi Khoirul, Ahmad Kusnahadi Susanto Laily Nur Qomariyati Matin, Iik Muhammad Malik Muhamad, Teten Sutia Muhammad Fadhil Muhammad Fadhil Mutmainah, Rina Nugroho, Ginaldi Ari Nurdin, Agung Ihwan Nurfalah, Rifki Nurichsan, Irman Nurwajah, Gilang Qomariyati, Laily Nur Rachman Pandu Dewanata Razzak, Taufiq Abdul Rifki Nurfalah Rina Mutmainah Riswanto Riswanto riswanto riswanto Rukmana, Ade Sani, Sani Mochsopian Sediono, Wahju Siswana, Titang Sri Nuraeni Sri Nuraeni, Sri Sugandi, Gandi Sugeng Santoso Tiara, Dinda Raihan Wafiyatul Amanah, Khomsah Wiharso, Tri Arif Wijaya, Tias Sultan Willy Anugrah Cahyadi Wiwik Handayani