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All Journal Komunikasi Fisika Indonesia JGE (Jurnal Geofisika Eksplorasi) JOURNAL ONLINE OF PHYSICS Jurnal Penelitian Pembelajaran Fisika Jurnal Ilmu Fisika STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Jurnal Inovasi Pendidikan Jurnal Kumparan Fisika International Journal of Applied Sciences and Smart Technologies JIFP (Jurnal Ilmu Fisika dan Pembelajarannya) Newton-Maxwell Journal of Physics Jurnal Pengabdian Masyarakat Pinang Masak
Jesi Pebralia
Physics Department, Faculty Of Sciences And Technology, Universitas Jambi, Jambi - Muara Bulian Street No.Km. 15, Muaro Jambi 36122, Jambi, Indonesia
Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics

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Journal : JOURNAL ONLINE OF PHYSICS

 1 
RANCANG BANGUN SISTEM PENANGKAP DAN PEMBACAAN GELOMBANG SEISMIK REFRAKSI UNTUK EKSPLORASI HIDROKARBON Maison Maison; Faizar Farid; Samsidar; Linda Handayani; Rustan; Jesi Pebrilia; Iful Amri
JOURNAL ONLINE OF PHYSICS Vol. 5 No. 1 (2019): JOP (Journal Online of Physics) Vol 5 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v5i1.8115

Abstract

The subsurface data acquisition in seismic eksploration usually using expensive equipment. In this work, a low-cost seismic equipment system has been developed for receive and record seismic wave. This system consist of mikrocontroller and software LabView that connected to PC. The subsurface low signals is recorded by geophone and through the amplifier instrument non-inverting. Then, the digital signals is prosessed by Mikrocontroller and visualize by LabView. Output of seismic measurement using this system design are travel time and amplitude. Travel time is used to modelling density and wave velocity to generate wave model. The expected model can give us value of density and wave velocity to obtain the anomaly. It has been tested using 1 geophone and successfully showed the wave, amplitude, and travel time.
PRINSIP KETIDAKPASTIAN HEISENBERG DALAM TINJAUAN KEMAJUAN PENGUKURAN KUANTUM DI ABAD 21 Jesi Pebralia
JOURNAL ONLINE OF PHYSICS Vol. 5 No. 2 (2020): JOP (Journal Online of Physics) Vol 5 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v5i2.9049

Abstract

The Heisenberg uncertainty principle is the basic foundation of quantum physics that characterizes quantum physics with classical physics. The Heisenberg uncertainty principle provides boundaries where there are no absolute measurement results in any quantum measurement. Along with the development of increasingly sophisticated measurement instruments in the 21st century, presents the opportunity for the emergence of modifications from the Heisenberg uncertainty principle from the general form of existing formulations. This study aims to provide an overview of the opportunities for Heisenberg uncertainty formulation and provide a description of the stages of the Heisenberg uncertainty formulation's uncertainty formulations that have been reviewed by previous researchers. The research method used is the method of literature study that aims to find out the background and theories of the development of Heisenberg's uncertainty principle and to explain the formulation directly which aims to determine the technical sequence of modifications to the existing formulation. Through this research, the authors managed to get an opportunity for the emergence of new modifications to the Heisenberg uncertainty principle formulation.
PENGUJIAN SISTEM KENDALI TEMPERATUR PADA SISTEM OTOMATISASI TUNGKU PEMBAKARAN PRODUKSI BIOCHAR Nurhidayah Nurhidayah; Tika Restianingsih; Frastica Deswardani; Mardian Peslinof; M.Ficky Afrianto; Jesi Pebralia
JOURNAL ONLINE OF PHYSICS Vol. 6 No. 2 (2021): JOP (Journal Online of Physics) Vol 6 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v6i2.13133

Abstract

Telah dilakukan pengujian akurasi sistem kendali temperatur pada tungku pembakaran produksi biochar. Pengujian ini bertujuan untuk mengetahui keakuratan sistem kendali temperatur pada tungku pembakaran produksi biochar. Metode pengujian yang dilakukan yaitu dengan cara mengatur suhu tungku pembakaran pada temperatur maksimal yaitu sebesar 4000C. Berdasarkan pengujian yang telah dilakukan diperoleh bahwa sistem dapat bekerja dengan baik sampai mencapai dimana tingkat keakuratan maksimal yang diperoleh sebesar 99%.
APLIKASI SENSOR KELEMBABAN DAN FLEX SENSOR BERBASIS ARDUINO UNO UNTUK SISTEM PENDETEKSI LONGSOR Rustan Rustan; Jesi Pebralia; Tika Restianingsih; Frastica Deswardani; Mardian Peslinof; Nurhidayah Nurhidayah; Iful Amri
JOURNAL ONLINE OF PHYSICS Vol. 7 No. 1 (2021): JOP (Journal Online of Physics) Vol 7 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v7i1.14805

Abstract

Early detection of landslides is very important to minimize the number of deaths. Technological developments allow humans to predict the signs of landslides more accurately, quickly, and scientifically. In this study, sensors were tested to measure landslide disaster parameters, namely humidity sensors to measure soil moisture and flex sensors to measure soil movement. The sensor is controlled using a microcontroller Arduino Uno. A functionality test was carried out to test the ability of the sensors. The functionality test was carried out using the unit testing method. The unit testing method is carried out by comparing the functional test results of each sensor to the expected response. The moisture sensor functionality test shows that the sensor is able to respond to changes in water content in the soil with changes in voltage. The linear equation resulting from the calibration of the humidity sensor is y = -0.126x + 2.666 with R2 = 0.871. The flex sensor functionality test shows that the sensor is able to detect soil movement in the presence of changes in voltage. The linear equation resulting from the flex sensor calibration is y = -2.861x + 2507 with R2 = 0.964. This shows that the humidity sensor and flex sensor are good enough to be applied in the design of a landslide detection system.
STUDY AWAL KARAKTERISASI SENSOR WARNA TC3200 UNTUK MENENTUKAN KADAR KAFEIN PADA KOPI Heriyanti Heriyanti; Samsidar Samsidar; Iful Amri; Jesi Pebralia; Rustan Rustan; Linda Handayani; Mardian Peslinof; Desi Ayundari; Sutrisno Sutrisno
JOURNAL ONLINE OF PHYSICS Vol. 7 No. 1 (2021): JOP (Journal Online of Physics) Vol 7 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v7i1.15286

Abstract

Pengukuran kadar kafein saat ini dibutuhkan agar penggunaan/konsumsi kopi sesui dengan dosis yang dibutuhkan, akan tetapi, sulitnya karakterisasi dan uji kimia dalam penentuan kadar kafein menjadi hambatan untuk mengetahui dosis kafein secara cepat dan tepat. Pada penelitian ini telah dilakukan karakterisasi sensor warna TC3200 sebagai studi awal rangkaian pembuatan alat ukur kafein berbasis sensor. Sampel yang digunakan adalah kopi Liberika, Arabika dan Robusta yang berasal dari Provinsi Jambi. Preparasi sampel dilakukan dengan proses roasting pada suhu 180OC dan pada saat proses berjalan pengambilan sampel secara real time pada (t= 38-45s), hasil preparasi sampel dilakukan uji UV-Vis untuk mengetahui konsentrasi  kandungan kadar kafein. Selanjutnya karakterisasi sensor warna TC3200 dilakukan untuk mengetahui nilai RGB (Red, Green, Blue) dari masing – masing sampel kopi. Hasil penelitian didapatkan nilai kadar kafein dari pengukuran UV-Vis yang akan menjadi database sensor, dan hasil karakterisasi sensor warna TC3200 pada kopi Liberika, Arabika dan Robusta secara kuantitatif didapatkan tingkat kevalidan data masing – masing 80%, 60% dan 70% dan analisis kualitatif bahwa sensor dapat digunakan untuk menetukan kadar kafein pada kopi dengan tingkat kematangan atau waktu roasting kopi yang berbeda.
A A SIMPLE OF IOT BASED SOCIAL CONTACT TRACKING FOR INFECTIOUS PATIENT USING ULTRASONIC SENSOR: A PRELIMINARY STUDY Iful Amri; Jesi Pebralia
JOURNAL ONLINE OF PHYSICS Vol. 7 No. 2 (2022): JOP (Journal Online of Physics) Vol 7 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v7i2.18192

Abstract

One of the efforts to inhibit the transmission of infectious diseases caused by viruses and bacteria is through applying physical distancing. This study aims to create a contact monitoring tool for patients who have been infected with contagious diseases based on ultrasonic sensors and the internet of things (IoT). This instrumentation system consists of four ultrasonic sensors mounted on the left, right, front and rear sides. The sensor will detect the distance of the object that is approaching directly. Then, the measurement data of each sensor will be sent to the cloud and accessed through the Blynk application. The results show that the performance of each ultrasonic sensor is excellent and can be applied as a distance measuring device between patients and other people. The calibration results show that the ultrasonic sensor can measure a distance of 10-200 cm with an R squared value of 0.999-1. In addition, the ESP8266 also shows excellent performance. ESP8266 can send data to the cloud to be accessed and displayed in the form of a bar graph on a mobile phone. Thus, the overall system can be stated that the instrumentation system has functioned and is working well.
PENGEMBANGAN ALAT UKUR KEMATANGAN KOMPOS BERBASIS ARDUINO ATMEGA328 Linda Handayani; Jesi Pebralia; Iful Amri; Ardiyaningsih Puji Lestari
JOURNAL ONLINE OF PHYSICS Vol. 8 No. 2 (2023): JOP (Journal Online of Physics) Vol 8 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v8i2.24331

Abstract

Kematangan kompos mengacu pada tingkat dekomposisi atau penguraian bahan organik dalam kompos. Kematangan kompos dapat dilihat dari parameter kelembaban, pH, dan suhu kompos. Pada penelitian ini dikembangkan alat ukur kematangan kompos berbasis arduino ATMega328 yang dilengkapi dengan sensor yang memungkinkan pengukuran parameter-parameter kritis seperti pH, suhu, dan kelembaban, yang sangat penting untuk menentukan tingkat kematangan kompos. Tahapan penelitian meliputi perencanaan desain perangkat keras, perancangan sistem perangkat lunak, perakitan alat, kalibrasi, dan analisis data. Pengujian dilakukan terhadap alat yaitu uji tingkat presisi. Uji presisi dilakukan dengan cara melakukan percobaan pengukuran parameter kompos secara berulang. Pada tahap kalibrasi, diperoleh persentase tingkat akurasi pengukuran suhu sebesar 97,42%, tingkat akurasi pengukuran pH sebesar 97,7%, dan tingkat akurasi pengukuran kelembaban sebesar 99,5%. Hasil pengujian akurasi alat dari masing-masing tiga parameter yaitu nilai suhu, pH, dan kelembaban, menunjukkan bahwa akurasi rata-rata alat berada pada angka 96,87%. Berdasarkan pengujian alat yang dilakukan terhadap sampel kompos dengan lima kali perulangan diperoleh standar deviasi pengukuran dari unsur C yaitu sebesar 1,56 dan nilai koefisien variasi yaitu sebesar 4,3%, deviasi pengukuran dari unsur N sebesar 0,07 dengan koefisien variasi yaitu sebesar 1,92%, standar deviasi dari unsur K yaitu 0,04 dan nilai koefisien variasi yaitu sebesar 0,81%. Rata-rata hasil pengujian nilai presisi enam parameter pada alat yang dikembangkan yaitu sebesar 91,24%. Berdasarkan nilai tersebut, maka alat yang dikembangkan mempunyai tingkat presisi yang sangat tinggi.
ANALISIS DOSIS PAPARAN RADIASI DARI PESAWAT PANORAMIK DI INSTALASI RADIOLOGI RUMAH SAKIT UMUM DAERAH RADEN MATTAHER JAMBI Chintiya Romarti; Jesi Pebralia; Rista Mutia Anggraini
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 1 (2023): JOP (Journal Online of Physics) Vol 9 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i1.27310

Abstract

This research aims to analyze the influence of distance and direction on radiation exposure values, assess the doses received by radiation workers and the general public, and evaluate the effectiveness of radiation protection from panoramic aircraft. The research method used is an experimental research method, where the researcher directly measures the variables of the study and conducts data analysis. The study was conducted by measuring radiation doses in various directions at distances ranging from 0.5 meters to 2.5 meters forward and to the right, and 0.5 meters to 1.5 meters to the left. Dose data reception was taken at operator room, service area, corridor, and waiting room points, and radiation protection effectiveness measurements were taken at corridor entrance, waiting room, and operator room points using a survey meter. The research results indicate that the radiation exposure dose is inversely proportional to the measured distance. The dose received by radiographers in the operator room is 0.107 μSv/hour, in the employee corridor, it is 0.0856 μSv/hour, and in the public waiting room, it is 0.0856 μSv/hour. The radiation protection effectiveness value in the operator room is 94.40%, at the patient entrance from the panoramic aircraft waiting room, it is 92.12%, and at the radiographer entrance from the employee corridor, it is 94.62%. According to the Tenth Value Thickness (TVT) concept, this is considered safe because the existing protection capabilities can effectively absorb radiation.
IMPLEMENTATION OF INTERNET OF THINGS (IoT) BASED ON GOOGLE SHEETS FOR WATER QUALITY MONITORING SYSTEM Jesi Pebralia; Linda Handayani; Dawam Suprayogi; Iful Amri
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 1 (2023): JOP (Journal Online of Physics) Vol 9 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i1.28689

Abstract

Temperature, pH, and TDS are important indicators of water quality that affect various aspects. This research aims to develop a water quality monitoring system by implementing Internet of Things (IoT) technology based on Google Sheets. Based on the tests for each sensor - temperature, pH, and TDS - the results show that the system has an excellent level of measurement precision, with an average precision value of above 95%. The findings also indicate that Google Sheets can be utilized in IoT technology and can operate on more than one distinct computer device at the same time. The use of Google Sheets in IoT technology is highly effective, flexible, and user-friendly. The measured data can be automatically stored and can be visualized effectively.".
RANCANG BANGUN SISTEM PENGUKURAN INTENSITAS CAHAYA, SUHU, DAN KELEMBABAN RUANGAN BERBASIS SENSOR DHT11 DAN BH1750 Pebralia, Jesi; Fendriani, Yoza; Afrianto, M. Ficky; Nur Syaqila, Cindy
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 1 (2024): JOP (Journal Online of Physics) Vol 10 No 1
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i1.38230

Abstract

Intensitas cahaya dalam ruangan, suhu, dan kelembaban udara merupakan parameter fisis penting yang secara langsung mempengaruhi kualitas udara di dalam ruangan sebagaimana diatur dalam Peraturan Menteri Kesehatan (Permenkes) RI Nomor 2 Tahun 2023. Penelitian ini bertujuan untuk membuat sistem pengukuran intensitas cahaya, suhu, dan kelembaban ruangan berbasis sensor BH1750 dan DHT11, serta untuk mengevaluasi kinerja dari system yang dibangun melalui pengujian terhadap nilai akurasi dan presisi system. Metode penelitian yang digunakan adalah metode penelitian dan pengembangan (R&D). Pengujian dilakukan di dua lokasi dimana lokasi pertama untuk mengkalibrasi akurasi sensor, sedangkan lokasi kedua digunakan untuk menguji nilai presisi sistem secara keseluruhan. Penelitian ini telah menghasilkan system pengukuran intensitas cahaya, suhu, dan kelembaban ruangan yang diintegrasikan dengan mikrokontroller Arduino uno sebagai perangkat pemrograman serta LCD TFT sebagai antar muka yang menampilkan data hasil pengukuran. Selain itu, hasil pengujian menunjukkan bahwa sistem pengukuran yang dikembangkan memiliki akurasi sebesar 90,13% dengan error sebesar 9,87% dan presisi sebesar 99,23%. Hal ini mengindikasikan bahwa sistem ini reliabel untuk mengukur parameter lingkungan dalam ruangan.
Co-Authors -, Maison Afrianto, Muhammad Ficky Anak Agung Istri Sri Wiadnyani Ardiyaningsih Puji Lestari Arini Rosa Sinensis Atsilah, Mutiara Basima Chintiya Romarti Dawam Suprayogi Desi Ayundari Ega Sapina Faizar Farid Frastica Deswardani Hamdi Akhsan Heriyanti Heriyanti Iful Amri Lia Wilani Linda Handayani Linda Handayani Mabruroh, Faizatul Mardian Peslinof Melly Ariska Muhammad Muslim Nur Syaqila, Cindy Nurhidayah Nurhidayah Nurhidayah Nurhidayah Putri, Jamiatul Khairunnisa Rista Mutia Anggraini Rizqa Raaiqa Bintana Rustan Samsidar Samsidar Samsidar Samsidar Sri Purwaningsih Sugiarti Sugiarti Suhadi Suhadi Sutrisno Tika Restianingsih Tine Aprianti Yoza Fendriani