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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Keteknikan Pertanian Jurnal Sains dan Teknologi TELKOMNIKA (Telecommunication Computing Electronics and Control) GRADIEN Jurnal Fisika Unand WARTA ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JOURNAL ONLINE OF PHYSICS JPSE (Journal of Physical Science and Engineering) Panrita Abdi - Jurnal Pengabdian pada Masyarakat Spektra: Jurnal Fisika dan Aplikasinya Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Pendidikan Fisika dan Teknologi Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Indonesian Physical Review Jurnal Kumparan Fisika Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada Masyarakat Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Indonesian Journal of Electrical Engineering and Computer Science Jurnal Pengabdian Masyarakat Asia Yumary: Jurnal Pengabdian kepada Masyarakat Jurnal Inovasi Pengabdian Masyarakat Pendidikan PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Indonesian Journal of Community Empowerment and Service
Riska Ekawita
Universitas Bengkulu
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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DESAIN SISTEM KALIBRATOR DAN DETEKTOR PERGERAKAN TANAH DI LAHAN MIRING Riska Ekawita; Elfi Yuliza; Lizalidiawati Lizalidiawati
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (524.244 KB) | DOI: 10.21009/03.SNF2017.02.CIP.12

Abstract

Abstrak Pengamatan pergerakan tanah menggunakan sistem sensor merupakan upaya efektif yang dapat dilakukan dalam mengurangi resiko bencana longsor. Pada penelitian ini dikembangkan sistem detektor pergerakan tanah menggunakan sensor accelerometer. Untuk mengurangi kesalahan pembacan sensor, dilakukan perancangan sistem kalibrator. Secara umum, sistem kalibrator terdiri dari motor dan driver motor yang bergerak secara diskrit. Detektor kemiringan menggunakan sensor accelerometer 3 axis dan mikrokontroler. Karakteristik kalibrator yang dikembangkan mampu menguji sensor dalam dalam dua axis, sehingga untuk sensor 3 axis dapat dilakukan secara manual. Berdasarkan hasil uji kalibrasi dan uji performa sensor pada model fisis skala laboratorium, sistem sensor telah menunjukan hasil yang baik dan sesuai digunakan untuk sistem pengamatan pergerakan tanah. Sensor accelerometer memiliki resolusi hingga 0,386 o/step sehingga setiap perubahan kecil yang terjadi dapat terdeteksi dengan baik pada sensor Kata-kata kunci: accelerometer; kalibrasi; kemiringan; mikrokontroler. Abstract Observation of soil movement using sensor system is an effective effort that can be done in reducing the risk of landslide disaster. In this research, it has been developed soil movement detector system using accelerometer sensor. The calibrator system is designed to reduce the error sensor. Generally, calibrator system consists of motor and driver motor that move discretely. The inclined plane detector used 3 axis accelerometer and microcontroller. The developed calibrator characteristics are capable of testing the sensors within two axis, so for 3 axis sensors can be done manually. Based on the results of calibration and sensor performance test on the laboratory scale physical model, the sensor system has shown good result and suitable to be used for observation system of the soil movement on inclined plane. The accelerometer sensor has a resolution of up to 0.386 o/step so that any minor changes that occur can be detected properly on the sensor. Keywords: accelerometer; calibration; inclined plane; microcontroller.
Membangun Jiwa Enterpreneur Bidang Elektronika Dengan Memanfaatkan LED Strip Chandra Kurniawan; Rida Samdara; Riska Ekawita
Jurnal Inovasi Pengabdian Masyarakat Pendidikan Vol. 3 No. 2 (2023)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jurnalinovasi.v3i2.27136

Abstract

Madrasah Aliyah Mambaul Ulum merupakan salah satu madrasah swasta di bawah kementerian agama yang berlokasi di Jl. Masjid Al-Muttaqin No.92 Desa Harapan Makmur, Kecamatan Pondok Kubang, Kabupaten Bengkulu Tengah, Provinsi Bengkulu. Sekolah yang sudah berdiri sejak 2016 ini memiliki unit usaha mandiri yang keuntungannya digunakan untuk mendukung operasional sekolah seperti biaya listrik, keberlangsungan kegiatan belajar mengajar, dan pembayaran gaji guru serta tenaga kependidikan. Namun usaha yang sudah berjalan selama ini belum optimal memenuhi operasional sekolah. Berdasarkan kondisi tersebut, tim pengabdian berasumsi bahwa perlu adanya unit usaha tambahan yang dapat dijalankan oleh sekolah. Salah satu unit usaha yang belum pernah dijalankan oleh MA Mambaul Ulum adalah unit usaha berbasis elektronika berupa pemanfaatan LED (Light Emitting Diode) Strip. Pemilihan unit usaha ini berdasarkan bidang keahlian tim pengabdian yaitu bidang fisika instrumentasi (elektronika). LED Strip dijadikan sebagai bahan utama dalam pembuatan souvenir berupa lampu hias dan lampu akrilik yang bernilai jual. Souvenir berbasis LED Strip tersebut diharapkan mampu menarik minat pasar dan menjadikannya sebagai sarana promosi unit usaha sekolah. Metode yang dilaksanakan dalam mencapai tujuan adalah pelatihan dan pendampingan pembuatan souvenir. Kegiatan ini diikuti oleh 12 orang peserta siswa/i MA Mambaul Ulum yang tergabung dalam 4 kelompok kecil. Di akhir pelatihan, peserta mampu membuat souvenir berbasis LED yang telah dikustomisasi sesuai dengan kreativitas masing-masing siswa.
PEMANFAATAN SALURAN IRIGASI SAWAH DESA RINDU HATI BENGKULU TENGAH MELALUI TEKNOLOGI TEPAT GUNA MIKROHIDRO Riska ekawita; Elfi Yuliza; Yazid Ismi Intara
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 7 No. 2 (2023): Jurnal Panrita Abdi - April 2023
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v7i2.18454

Abstract

The need for electrical energy is increasing in every area and year. However, not all sites can be fulfilled - incredibly outlandish locations. At the same time, the natural potential in there, such as river irrigation flows, can be used as an additional source of electricity for the area. This paper describes the science and technology-based community service activities by applying appropriate micro-hydro technology to produce electrical energy. This service aims to optimize natural potential in the form of rice field irrigation channels as street lighting in Rindu Hati Village, Central Bengkulu Regency. The methods are socialization and design of micro hydro systems with service participants. The service implementation consists of equipment preparation, socialization, and installation of a micro-hydro system with service participants from members of a group ‘Pokdarwis’ of the Rindu Hati Village. The involvement of participants with the service team made this activity possible to carry out properly so that street lighting with energy sources from irrigation channels could be realized. Monitoring the condition of the sustainability of the micro-hydro system was still carried out by appointing one of the service participants as the person in charge of the micro-hydro system.  ---  Kebutuhan masyarakat terhadap energi listrik setiap tahun terus meningkat. Namun tidak semua daerah dapat tercukupi kebutuhan listriknya, terutama untuk daerah yang terpencil, sedangkan potensi alam di daerah terpencil seperti aliran irigasi sungai dapat dimanfaatkan sebagai sumber listrik tambahan bagi daerah tersebut . Tulisan ini memaparkan kegiatan pengabdian masyarakat berbasis iptek melalui penerapan teknologi tepat guna mikrohidro dalam upaya menghasilkan energi listrik. Tujuan pengabdian ini  untuk mengoptimalkan potensi alam berupa saluran irigasi sawah sebagai penerangan jalan Desa Rindu Hati, Kabupaten Bengkulu Tengah. Metode yang digunakan adalah sosialisasi dan rancang bangun sistem mikrohidro dengan peserta pengabdian. Pelaksanaan pengabdian terdiri dari tahapan persiapan perangkat, sosialisasi dan instalasi skistem mikrohidro dengan peserta pengabdian yang berasal dari anggota Pokdarwis Desa Rindu Hati. Hasil dari kegiatan ini adalah terbentuknya sistem mikrohidro yang memanfaatkan aliran irigasi sungai sehingga dapat dimanfaatkan sebagai sumber penerangan lampu jalan di lokasi tersebut.Pemantauan kondisi keberlangsungan sistem mikrohidro tetap dilakukan dengan penunjukkan salah seorang peserta pengabdian sebagai penanggung jawab sistem mikrohidro.
DISTANCE RANGE TEST OF SW-420 SENSOR-BASED VIBRATION DETECTION SYSTEM Sultan Nanda Alamsyah; Wery Melisa; Okta Sari; Mutia Raudhatul Zahra; Muhammad Yuliansyah Putra; Zafran Afif; Shalih Muhammad Abdul Azhim; Elfi Yuliza; Riska Ekawita
Jurnal Kumparan Fisika Vol. 6 No. 3: Desember 2023
Publisher : Unib Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jkf.6.3.177-184

Abstract

ABSTRAK   Proses gelombang yang disebabkan oleh getaran dapat dimanfaatkan dalam hal pemantauan struktur bangunan, analisis kebisingan peralatan industri, dan deteksi gempa. Gempa bumi memiliki dampak berbahaya pada manusia karena pergerakan lempeng bumi di bawah permukaan. Berbagai teknologi di berbagai cabang ilmu dikembangkan untuk dapat mendeteksi pergerakan lempeng dengan cepat dan baik. Tulisan ini juga menguji jangkauan sensor SW-420 terhadap sumber getaran. Memahami jangkauan sensor SW-420 sangat penting karena memungkinkan Anda untuk menyesuaikan batas sensitivitasnya sesuai dengan kebutuhan aplikasi. Meskipun informasi ini umumnya tersedia dalam lembar data, memahami jangkauan dapat membantu mengoptimalkan penggunaan sensor untuk deteksi getaran atau guncangan yang lebih akurat. Respon sensor akan dikirim ke mikrokontroler untuk menghasilkan sinyal suara pada buzzer ketika terjadi getaran. Mikrokontroler akan memproses sinyal analog dari sensor menjadi sinyal digital. Semakin jauh jangkauan sensor, semakin baik sensor tersebut dalam mendeteksi getaran. Dalam uji ini, dilakukan uji jangkauan terhadap sumber getaran. Sumber getaran berasal dari objek dengan massa tertentu yang dijatuhkan. Dalam uji ini, diketahui bahwa SW-420 mampu mendeteksi dengan jarak maksimum 200 cm dari sumber getaran.   Kata Kunci: Deteksi, Getaran, Jarak, Mikrokontroler, Sensor   ABSTRACT   Wave propagation due to vibration can be utilized in terms of monitoring building structures, analyzing industrial equipment noise, and earthquake detection. Earthquakes have a harmful impact on humans due to the movement of subsurface plates. Various technologies in various branches of science were developed to be able to detect plate movements early and well. This paper also tests the range of the SW-420 sensor to the vibration source. Understanding the range of the SW420 sensor is crucial as it allows you to precisely adjust its sensitivity limits according to the application's needs. Although this information is generally available in the datasheet, comprehending the range can assist in optimizing the sensor's usage for more accurate detection of vibrations or shocks. The sensor response will be sent to the microcontroller to produce a sound signal on the buzzer when there is vibration. The microcontroller will process the analog signal from the sensor into digital. The farther the range of the sensor, the better it is at detecting vibrations. In this test, a range test is carried out on the vibration source. The source of the vibrations comes from objects with a certain mass that is dropped. In this test, it was found that the SW-420 was able to detect with a maximum distance of 200 cm from the vibration source.   Keywords: Detection, Distance, Microcontroller, Sensor, Vibration
IDENTIFICATION OF PHYSICAL OCEANOGRAPHIC PARAMETERS AND MIXING TYPES AT THE TRANSITIONAL SEASON I IN THE ESTUARY OF AIR MANNA REGENCY SOUTH BENGKULU Supiyati, Supiyati; Sari, Devi Permata; Ekawita, Riska; Johan, Septi; Sudirman, Sudirman
Spektra: Jurnal Fisika dan Aplikasinya Vol. 8 No. 2 (2023): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 2, August 2023
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.082.05

Abstract

The recent increase in community activity in the Air Manna Estuary of the South Bengkulu regency, will affect the physical condition of the estuary. Therefore, this research were to determine of the physical oceanographic parameters such as temperature, salinity, current velocity, tidal and the mixing type in the Air Manna estuary, South Bengkulu Regency at the transitional season I. The method used is the measurement of field data directly during high tide and low tide conditions as well as descriptive and quantitative data analysis. The results showed that the characteristics of the physical oceanographic pharameters in the Air Manna Estuary were influenced by tidal condition. The highest current speed at the mouth of the estuary is 2.6 m/s at low tide and 2.2 m/s at high tide, with the highest temperature in the upstream estuary of 27.49oC towards the sea during high tide conditions. The low salinity in the middle of the estuary of 0.99 ppt increases towards the sea with a relatively smaller distribution of salinity at low tide.The mixing type in the Air Manna Estuary is the Salt wedge estuary which has a well-certified mixing pattern, with an estuary number of 0.00019.
Penyiram Air Otomatis Kumbung Jamur Tiram Pada Pesantren Ma. Mambaul ‘Ulum, Bengkulu Tengah Ekawita, Riska; Elfi Yuliza; Supiyati
Jurnal Inovasi Pengabdian Masyarakat Pendidikan Vol. 4 No. 1 (2023)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jurnalinovasi.v4i1.28686

Abstract

Pondok Pesantren MA. Mambaul 'Ulum, which is located in Bengkulu Tengah Regency, Bengkulu Province, has an oyster mushroom business unit to support the operational needs of the school. Maintenance, especially baglog watering on oyster mushroom house, is carried out conventionally. Through service activities, a baglog sprinkler automation system was built that works based on humidity and temperature in the mushroom house. The system utilizes electrical energy sourced from solar panels that are integrated with an automatic sprinkler system. The method used in the target audience of service (teachers and students) starts from the initial coordination, then the delivery of the material in theory and practice, followed by the installation of the system as a whole and running and testing the system. Based on the test results, it was obtained that the system can run properly according to the conditions set on the automated system. The watering automatic system active while the oyster mushroom house in non-ideal environmental condition.
IoT Application of Simple Solar Intensity Monitoring System Using Photovoltaic Panel Lestari, Resma Puji; Yuliza, Elfi; Ekawita, Riska
JPSE (Journal of Physical Science and Engineering) Vol 8, No 1 (2023): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um024v8i12023p066

Abstract

Solar radiation data is useful for solar power plant (PLTS) development, the agricultural sector, renewable energy, transportation and communication, and other disciplines. This data is generally obtained from government agencies. The device used to measure solar radiation is a pyranometer. However, this equipment has limited availability and the data information is only owned by certain regions. Therefore, it is necessary to develop a simpler measuring instrument for the intensity of solar radiation. So that data information is obtained easily and the operation of tools is easy. In this study, photovoltaic panels were used to read the intensity of solar radiation. When this panel is exposed to the sun it will generate electricity and its output is proportional to its radiation. Data monitoring utilizes IoT. The measured results of measuring the intensity of solar radiation have a maximum value of 450.21 W/m2. The measured magnitude of the solar radiation value shows that the influence factors in the form of sunlight intensity, ambient temperature, and panel output power are proportional to the radiation value while environmental humidity is inversely proportional to the radiation value.
Sensitivity Testing of Simple Metal Detection System on Coil Dimension Change and Measurement Distance Bangun, Abel Melido; Yuliza, Elfi; Ekawita, Riska
JPSE (Journal of Physical Science and Engineering) Vol 8, No 2 (2023): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Metal residues in the soil at shallow depths can be detected with simple detectors. Development was carried out using several equipment tests. The purpose of this research is to design a simple metal detection system by testing the coil diameter, the wire diameter, and the number of coil windings to determine their effect on the detection distance of the metal detection system. The metal detection system in this study uses the pulse induction method, which uses one coil as a transmitter and receiver. The wire used 4 types of diameter sizes. For one size of wire diameter, three variations of the number of coil windings are made, and for each variation of the number of coil windings, five variations of coil diameter are made. The test results show that the diameter of the coil affects the detection distance of a simple metal detection system, the larger the diameter of the coil, the farther the detection distance for medium and large-sized metals, while for small metals, the lower the detection distance. Wire diameter affects the detection distance of a simple metal detection system, the larger the wire diameter, the farther the detection distance, and vice versa, the smaller the wire diameter, the lower the detection distance. The number of coil windings affects the detection distance of a simple metal detection system, the more turns, the farther the detection distance, while the fewer turns, the closer the detection distance.
Analisis Perubahan Garis Pantai Pulau Enggano Bengkulu Utara Menggunakan Aplikasi Digital Shoreline Analysis System (DSAS) Gunawan, Nur Aini; Ekawita, Riska; Supiyati, Supiyati; Anjasman, Anjasman
Jurnal Fisika Unand Vol 13 No 6 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.6.756-761.2024

Abstract

The coastline is the boundary between the land surface and the sea surface that can change every year. Enggano Island is one of the areas experiencing very rapid coastal changes. This research aims to identify changes in the coastline of Enggano Island over the past 5 years and determine the maximum and minimum changes in abrasion and accretion. The data processing results show that over the past 5 years, the coastline in three villages on Enggano Island has changed overall, with abrasion of 91.01 meters and accretion of 348.08 meters. Due to the wave height on Enggano Island, these three villages have experienced sedimentation (land addition) and changes in the coastline caused by accretion being greater than abrasion. For instance, in 2020-2021, the sea wave height peaked, causing abrasion. However, the wave height continued to decrease in the following years, causing land erosion each year. From the explanation above, it can be concluded that Enggano Island is experiencing changes in its coastline, which are predominantly caused by accretion events.
Introduction to Science Learning Tools Based on Waste for Elementary School Students Ekawita, Riska; Supiyati; Saputra, Rahmat; Yosia Pandu S; Melisa, Wery; Yuliza, Elfi
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 8 No. 2 (2025): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35568/abdimas.v8i2.6294

Abstract

Regulations and laws in Indonesia strongly support learning using teaching aids. Teaching media or aids are essential in the process of knowledge transfer for students. Students will find it easier to understand the lesson material if assisted by teaching aids, even if they are in a simple form. Teachers can introduce teaching aids made from recycled waste materials. Therefore, the aim of this community service activity is to introduce the development of teaching materials made from waste materials. A community service activity utilizing waste materials (cardboard, sticks, etc.) as classroom learning media will be conducted at SDIT Nurul Fikri, Bengkulu City. The target audience for this community service activity is teachers and some students. The method used consists of theory and practice. The service team will train teachers and students to create science teaching aids, particularly on the themes of pressure and energy. As a result of this activity, several examples of science teaching aids made from waste materials were produced. These teaching aids will certainly help enhance students' understanding and create their own appeal toward science subjects.
Co-Authors Afifah Amatullah, Elin Nur Agustin, Rika Amelia Alfando, Andre Almadi, Ismail Fahmy Anggria, Della Cici anjasman, anjasman Bangun, Abel Melido Chandra Kurniawan Dari, Evita Sri Wulan Devi Permata Sari Elfi Yuliza Elfi Yuliza Endah Rahmawati Farid, Mochammad Fauzi, Hera Wahyu Fauzi, Muhammad Khafid Gunawan, Nur Aini Habibullah, Ahmad Dhuha Johan, Septi Khairurrijal Khairurrijal Lestari, Resma Puji Lestari, Widya Novia Lizalidiawati Lizalidiawati MAHDALYA, ELLIN ERNITA Maman Budiman Melisa, Wery Mikrajuddin Abdullah Muda Lubis, Ashar Muhammad Yuliansyah Putra Mutia Raudhatul Zahra Nasution, Ahmad Azmi Nolla Kusumawardani Okta Sari Rahmat Awaludin Salam Rahmayanti, Handika Dany Refrizon Rendi Dwi Prasetyo Rida Samdara Rida Samdara SAGALA, MONAESA Saputra, Rahmat Sari, Vera Fuspita Shalih Muhammad Abdul Azhim SIHOMBING, YOSIA PANDU Sipriyadi Suardi, Nursakinah Sudirman Sudirman SULISTIANI, EVI Sultan Nanda Alamsyah Supiyati . Suwarsono Suwarsono Suwarsono Suwarsono Ulandari, Tresi Pitria Vionita, Vionita Wery Melisa Yazid Ismi Intara Yazid Ismi Intara Yosia Pandu S Zafran Afif