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All Journal APTEK Jurnal Surya Teknika Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Penelitian Rumpun Ilmu Teknik
Asde Rahmawati
Institut Teknologi Bisnis Riau, Pekanbaru, Riau
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengembangan Sensor Elektrokimia Berbasis Material Nano untuk Deteksi Ion Timbal (Pb²⁺) Menggunakan Sistem Elektronika Terintegrasi Rahmawati, Asde; Nurjanah, Siti; Fahrizal, Fahrizal; Marta Putri, Dila; Ikhsan, M; Wajhi Akramunnas, Bastul
SURYA TEKNIKA Vol 12 No 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9544

Abstract

Electrochemical sensors are a reliable method for detecting the presence of heavy metal ions such as lead (Pb²⁺) in aquatic environments. In this study, a sensor was developed based on a carbon paste electrode modified with ZnO nanomaterials and polyaniline, and integrated with a data acquisition system using a microcontroller. Voltammetric characterization results showed that the sensor could detect Pb²⁺ with high sensitivity at low concentrations. This system is expected to be applied for real-time and portable water quality monitoring.
Penggunaan Sensor Tegangan Terhadap Penentuan Lokasi Gangguan Saluran Transmisi 150 kV Septiyeni, Tesya Uldira; Rahmawati, Asde; Fahrizal, Fahrizal; Wajhi Akramunnas, Basthul; Yuni Safitri, Wiwit
SURYA TEKNIKA Vol 12 No 2 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i2.10697

Abstract

Sistem transmisi yang Panjang dan berada di daerah terbuka sering mengalami gangguan, dengan alokasi gangguan yang cukup sulit karena membutuhkan waktu yang cukup lama serta sering tidak akurat. Pada penelitian ini, diuji penggunaan sensor tegangan yaitu Coupling Capacitor Voltage Transformer menggunakan tiga jenis jumlah sampling yaitu 10 kHz, 500 kHz, dan 1 MHz. Adapun data yang digunakan yaitu system transmisi Pembangkit Listrik Tenaga Air (PLTA) Maninjau hingga Gardu Induk Pauh Limo. System gangguam yang dimodelkan yaitu gangguan satu fasa tanah, dua fasa, dua fasa tanah, tiga fasa, tiga fasa tanah, dan surja petir. Hasil yang diperoleh variasi jumlah sampling 1 MHz lebih efektif dengan nilai error yang lebih kecil sehingga nilai akurasi yang dihasilkan lebih tinggi dibandingkan dengan jumlah sampling 10 kHz dan 500 kHz.
Desain Sistem Kontrol Cerdas Penyeimbangan Sel Baterai yang disusun Seri Safitri, Wiwit Yuni; Rahmawati, Asde; Fahrizal, Fahrizal; Akramunnas, Basthul Wajhi; Septiyeni, Tesya Uldira
SURYA TEKNIKA Vol 13 No 1 (2026): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v13i1.11634

Abstract

Batteries are used as energy storage devices due to their high energy and power density. Battery cells are typically connected in series to achieve higher voltage and power capacity. However, differences in chemical and electrical characteristics of each cell can lead to voltage imbalance after repeated charge-discharge cycles. This condition ultimately reduces the total capacity of lithium-ion batteries and shortens their lifespan. This study introduces an efficient and high-performance cell balancing mechanism specifically designed for series-connected batteries. To optimize the balancing process and ensure voltage uniformity across the cells, an intelligent Fuzzy Logic Kontroler is integrated to control the balancing circuit. Simulation results show that the use of intelligent control can achieve battery voltage balance within 60 seconds.
Co-Authors Akramunnas, Basthul Wajhi Akramunnas, Bastul Wajhi Bastul Wajhi Akramunnas Dila Marta Putri FAHRIZAL Fahrizal Fahrizal Fahrizal Fahrizal Fahrizal Fahrizal Legisnal Hakim Lukman Hakim Nasution Lukman Hakim Nasution M Ikhsan M IKHSAN Marta Putri, Dita Safitri, Wiwit Yuni Septiyeni, Tesya Uldira Siti Nurjanah SITI NURJANAH Siti Nurjanah Wajhi Akramunnas, Basthul Wajhi Akramunnas, Bastul Yoan Purbolingga Yuni Safitri, Wiwit