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All Journal Jurnal Elementer (Elektro dan Mesin Terapan) Unri Conference Series: Community Engagement Proceeding Applied Business and Engineering Conference
Rizadi Sasmita Darwis
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Journal : Jurnal Elementer (Elektro dan Mesin Terapan)

 1 
Pengaruh Ketebalan Material Terhadap Shielding Effectiveness pada Frekuensi Rendah Mohammad Yanuar Hariyawan; Rizadi Sasmita Darwis; Siska Novita Posma
Jurnal Elektro dan Mesin Terapan Vol. 7 No. 2 (2021): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.871 KB) | DOI: 10.35143/elementer.v7i2.5176

Abstract

Today, the need for electronic devices with smaller and more compact dimensions integrating many functions is increasing. At the same time, the need for ubiquitous processor speed, clock, data rate, and wireless connectivity is also increasing. This increase in demand also results in an increase in electromagnetic interference (EMI) in the environment. Although rare, High-Impact, Low-Frequency (HILF) events have the potential to have a deleterious impact on the electric power system. In this study, an analysis of shielding effectiveness (SE) was carried out at low frequencies when the thickness of the shielding material was varied. The materials used in this research are aluminum sheet and aluminum foil, and they combine their thickness through a single layer or double layer scheme. The thickness of the shielding material affects the value of shielding effectiveness; as evidenced when the thickness of the material is increased to 2 times, an increase in the value of shielding effectiveness reaches 207%. The use of double layers shows an increase in shielding effectiveness which is better than increasing the thickness of the material.
Pengiriman Data Surveillance Sensing Menggunakan Sistem Nirkabel Pada Frekuensi 433 MHz Untuk Kebakaran Hutan Muhammad Saputra; Rizadi Sasmita Darwis; Hamid Azwar; Emansa Hasri Putra
Jurnal Elektro dan Mesin Terapan Vol. 8 No. 1 (2022): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.749 KB) | DOI: 10.35143/elementer.v8i1.5230

Abstract

The fires that hit Indonesia in 2015 are considered one of the biggest environmental disasters of the 21st century so far. The World Bank estimates that the 2015 fire crisis cost Indonesia US$16 billion in forestry, agriculture, tourism and other industries. The smog causes respiratory and other illnesses in hundreds of thousands of people across the region. So far, efforts to mitigate forest and land fires have often been carried out by the government and the forest fire task force, starting from creating an early warning system, increasing community participation, and forest fire control techniques. However, all of these mitigation efforts are more dominantly carried out after forest and land fires have occurred. Whereas when a fire has occurred and the fire has grown bigger, fire mitigation efforts become more difficult and expensive because they have to involve helicopters to extinguish the fire from the air. So a land and fire mitigation effort requires one that is easy to use, fast and cheap to implement, and can reach a wider area than a forest area. The research aims to create a surveillance sensing system for forest fire for forest fire mitigation based on drone technology, and sensor technology. This research is an innovation and development of science and technology that is beneficial to the community, the forest fire task force and the local government. The research stages start from the design, manufacture, and design of a surveillance sensing system for forest fire in the Telecommunication Network laboratory. The output of this research is a prototype surveillance sensing system for forest fire. Test results within a certain time span indicate that the sensor is running well. All sensors used will show a change in value when a heat source and fire are detected. The average temperature sensor result is 72.34 C. While the dust particle sensor result is 665.45 g/m3 . And for air quality sensors the average is 0.225 ppm. For GPS sensor data it has 99.5% accuracy. which the Arduino reads before sending. The maximum delivery distance that can be used is 0-40 meters.
Analisis Pengaruh Perubahan Jarak Node Harvester Terhadap Kinerja Wi-Fi Mohammad Yanuar Hariyawan; Riezkha Salsabilla; Rizadi Sasmita Darwis
Jurnal Elektro dan Mesin Terapan Vol. 8 No. 2 (2022): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.906 KB)

Abstract

Pemanfaatan energi yang ada disekitar untuk menyuplai perangkat elektronik berdaya rendah semakin banyak dikembangkan, tidak terkecuali pemanfaatan energi RF yang banyak dihasilkan oleh perangkat telekomunikasi. Banyak penelitian memanfaatkan energi RF yang dihasilkan oleh perangkat Wi-Fi sebagai salah satu sumber energi alternatif. Akan tetapi pengaruh pemanfaatan energi RF yang bersumber dari Wi-Fi tidak banyak yang mengulas. Pada penelitian ini dibahas pengaruh penggunaan node harvester yang memanfaatkan energi RF yang dihasilkan oleh perangkat Wi-Fi terhadap kinerja jaringan Wi-Fi tersebut. Pada penelitian ini dilihat pengaruh jarak 4 node harvester terhadap kinerja jaringan Wi-Fi yang terdiri dari 1 mikrotik routerboard, 4 laptop. Parameter yang diujikan dimulai dari tegangan pada harvester, nilai throughput, delay, packet loss dan power density. Dari hasil penelitian kapasitor 470 µF menghasilkan tegangan terbesar dengan nilai ±0.4V. Nilai tegangan pada harvester akan semakin tinggi ketika didekatkan dengan Wi-Fi dan bernilai 0 di jarak ±15 m dari Wi-Fi. Hasil pengujian memperlihatkan nilai throughput yang terus menurun seiring penambahan jarak harvester ke Wi-Fi penurunan disebabkan oleh best effort pada jaringan. Sedangkan nilai delay yang didapatkan tidak murni terpengaruh oleh penggunaan harvester dan nilai packet loss didapat 0 % . Power density mengalami penurunan nilai daya ketika harvester semakin dekat jaraknya dengan Wi-Fi dan selisih nilai daya ±2 dBm disetiap perpindahan jarak yang ditetapkan.
Co-Authors Emansa Hasri Putra Hamid Azwar memen akbar Mochamad Susantok Mohammad Yanuar Hariyawan Muhammad Saputra Riezkha Salsabilla Siska Novita Posma Vistarika