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All Journal TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika DEDIKASI PKM Fuse-teknik Elektro
Ikhsan, Akhmad Fauzi
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Social Sciences

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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 Aeni, Dinda Noorfaidah Ahmad Hasyim ahmad rizal Bambang Sugiarto Dien Rahmawati Fajriani, Dini Firdaus, Ripki Fauzi Haqiqi, Muhamad Mirza Etnisa Hari Setiawan Helfy Susilawati Husneni Mukhtar Iik Muhamad Malik Matin Iqbal, Fahmi Mohamad Khoerunnisa, Ica Kusnahadi Susanto Muhammad Nawawi Mujianto, Haryadi Mustopa, Ridwan Novitasari, Evi Nurdin, Agung Ihwan Nurichsan, Irman Paujiah, Awalia Putra, Rian Ariana Rahman, Aditiya Razzak, Taufiq Abdul Riswanto ., Riswanto Rival, Selamet Muhamad Rukmana, Ade Sifa Nurpadillah Taufik Rachman Utama, Widiyanto Krisna Widiyanti, Iwin Wiharso, Tri Arif Willy Anugrah Cahyadi