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Jurnal Amplifier: Jurnal Ilmiah Bidang Teknik Elektro dan Komputer
Published by Universitas Bengkulu
ISSN : 20892020     EISSN : 26222000     DOI : https://doi.org/10.33369/jamplifier
Core Subject : Science, Engineering,
Computer Science & IT Electrical & Electronics Engineering Engineering
Jurnal Amplifier: Jurnal Ilmiah Bidang Teknik Elektro dan Komputer is a scientific communication media which is issued by the Study Programme of Electrical Technic, Faculty of Technic, the University of Bengkulu, with the p-ISSN 2089-2020 and e-ISSN 2622-2000. It is published twice a year in the months of May and November. The authors are required to register in advance and upload the manuscript online. The process of the manuscript could be monitored through OJS. Authors, readers, editorial board, editors, and peer review could obtain the real-time status of the manuscript. A hard copy of the journal could be purchased by the system. Several other changes are informed in Journal History
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 100 Documents
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Sistem Monitoring Penggunaan Beban Pada Proses Pengosongan Baterai 100WP Menggunakan Sensor PZEM-004T andari, rafika
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 1 (2021): Amplifier Mei Vol. 11, No. 1 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i1.15472

Abstract

In this study, a prototype tool of plts battery discharge monitoring system was created that aims to facilitate in monitoring plts system, solar panel battery usage monitoring system equipped with arduino microcontroller, current sensor, voltage and power that has been calibrated, so that the data acquisition system integrated in arduino microcontroller based system can be obtained in real time. From the results of the study, according to the microcontroller planner used in this final task is arduino UNO328 and sensor PZEM-004T. This monitoring tool is capable of reading voltage, current, power, cosphi and battery capacity in percent at the time of load supply.
Penerapan Sistem Keamanan Web Menggunakan Metode Web Aplication Firewall Riska, Riska; Alamsyah, Hendri
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 1 (2021): Amplifier Mei Vol. 11, No. 1 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i1.16683

Abstract

The application of a security system on the web needs to be done considering that the web itself can be accessed through a public network. In this study, a Web Application Firewall (WAF)-based security system will be implemented using modsecurity, in which the purpose of implementing this web security system is to understand the concept of a security system on the web and pay attention to the results before the application of the firewall and after the application of the firewall on the web. This research uses experimental research methods, in this study the implementation of a web application firewall (WAF) using modsecurity as a web security system is carried out, then an analysis is carried out to get the right recommendations for a firewall as a web security system. The results of this study indicate that a firewall using the modSecurity module and rule based on the Web Application Firewall (WAF) on a web security system can block SQL Injection, Cross Site Scripting (XSS), and Command Execution by displaying an error message to the user who performs the command.
Analisa Peralihan Tanggapan Tegangan Sistem Automatic Voltage Regulator (AVR) Tipe Arus Searah Dengan Pengendali 2 Derjat Kebebasan Laksono, Heru Dibyo
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 1 (2021): Amplifier Mei Vol. 11, No. 1 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i1.15645

Abstract

This journal discusses the design and analysis of the transfer response of the direct cuurent type of Automatic Voltage Regulator (AVR) system with 2 degrees of freedom controller. Direct current type of the AVR system is represented in the form of transfer function. For 2 degrees of freedom controllers are designed using a parallel architecture with the help of Matlab software using predefined design criteria. The types of controllers used consist of Proportional Differential (PD), Proportional Integral (PI), Proportional Integral Differential (PID), Proportional Differential with First Order Filters in the Differential Section (PDF) and Proportional Intregral Differential with First Order Filters in the Differential Section (PIDF). For the transition analysis, the observed parameters consist of rise time, peak time, steady state time, maximum pass value and peak value. The results of the analysis show that the controller that meets the design criteria is a Proportional Differential (PD) controller with an uptime parameter value of 0.2808 seconds, a peak time of 1.3354 seconds, a steady state time of 0.7017 seconds, a maximum pass of 0% and a peak value of 0.9512. For the Proportional Differential controller with First Order Filter in the Differential Section (PDF) with an increase time parameter value of 0.4177 seconds, a peak time of 1.4684 seconds, a steady state time of 0.8453 seconds, a maximum pass of 0% and a peak value of 0.9502.
Perancangan Alat Pendeteksi Kualitas Minyak Goreng Dengan Parameter Viskositas Dan Densitas Mengggunakan Metode Fuzzy Logic Surapati, Alex; Zyaputra, Azam; Rinaldi, Reza Satria
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 1 (2021): Amplifier Mei Vol. 11, No. 1 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i1.17133

Abstract

AbstrakThe quality of cooking oil sold in the market needs to be checked to ensure its health. cooking oil quality detector is designed to make it easier for the public to know the quality of the cooking oil. The research method is to make tools and conduct testing. The test is carried out by measuring the viscosity and density using the tool made. When the viscosity of 985 fuzzification was "good", and the density was 542.93 Kg/mL of "good" fuzzification, the fuzzification was processed by a fuzzy inference system, then defuzzification occurred in the form of oil quality results. fried "good". When the viscosity of 932 fuzzification is "sufficient", and the density is 618.69 Kg/mL of "moderate" fuzzification, a fuzzy inference system occurs, a defuzzification process is "moderate", when the viscosity of 926 fuzzification is "bad", and a density of 631.31 Kg/mL fuzzification "bad", fuzzy inference system occurs, defuzzification process occurs with "bad" results. To ensure that the results are accurate, the sample is taken to the BPOM which measures free fatty acids. From the BPOM test results converted to viscosity and density. In order to obtain an accurate conversion value between viscosity and density, it is recommended that a large number of samples be tested..Keywords: viscosity, density, fuzzy logic
Analisis Pengaruh Sudut Penyalaan TRIAC terhadap Pengaturan Kecepatan Motor Induksi Satu Fasa Menggunakan Cycloconverter Herawati, Afriyastuti; Saputra, Muhammad Alvin; Anggraini, Ika Novia
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 1 (2021): Amplifier Mei Vol. 11, No. 1 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i1.15766

Abstract

ABSTRACTA single-phase induction motor is one type of electric motor that is most widely used in everyday’s life, especially for running small loads. The application of this single phase induction motor is not only in households but also in shops, shopping centers, and industry. In its operation, single-phase induction motors can be operated with constant speed and variable speed. The operation of a single-phase induction motor at a constant speed can be done by inputting the nominal voltage and frequency of the motor. Meanwhile, the operation of a single-phase induction motor with varying speeds can be done by adjusting the input frequency of the motor. In this study, an induction motor speed control was carried out using a cycloconverter to regulate the speed of a single-phase induction motor by changing the input frequency of the motor into three variations, namely f / 1, f / 2 and f / 3 at the base frequency of 50 Hz. The cycloconverter switching was designed using TRIAC and then a study was carried out on the effect of the TRIAC’s firing angle on the speed, voltage and output power of the motor by varying firing angles by 0?, 30?, 45?, 60? and 90?. The result show, it is found that increasing the firing angle, the motor output voltage decrease, the motor output power also decrease, except at the angle of 60 ? rises then at the angle of 90 decrease again, while the motor speed increases at the same frequency.  Keyword: cycloconverter, firing angle, TRIAC.
Design of Electrical Setting Protection System Indarung VI Cement Plant (Case Study New Cement Plant Construction at PT Semen Padang) PRASETYAWAN, DIAN EKA
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 1 (2021): Amplifier Mei Vol. 11, No. 1 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i1.15038

Abstract

Along with the rapid development of technology and the development of civilization, electrical energy is very important in all fields. This research will conduct a study on the electrical protection system design of PT Semen Padang's Indarung VI Cement Plant using the ETAP 12.6 software. PT Semen Padang's Indarung VI Cement Plant uses three transformers of 150 / 6.3 kV of 30/35 MVA (ONAN / ONAF) and each Main Substation has substations that will supply all the loads to be used. The power flow study shows that the addition of a capacitor bank and a tap changer setting will improve the power factor and voltage of the system, thereby reducing the power supply sent by PLN. The short circuit study shows that the largest short circuit current, which is 35 kA, can be protected by a circuit breaker with a breaking capacity of 40 kA. The protection system coordination study shows that the results of the overcurrent relay setting can protect the electrical system of Indarung VI Cement Plant selectively and safely.
PENGEMBANGAN INFRASTRUKTUR JARINGAN BERBASIS NIRKABEL KE JARINGAN BERTEKNOLOGI GPEN (GIGABIT PASSIVE ETHERNET NETWORK) DI KAMPUS IAIN BENGKULU Wijaya, Candra; Aspriyono, Hari; Al Akbar, Abdussalam
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 1 (2021): Amplifier Mei Vol. 11, No. 1 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i1.16064

Abstract

The purpose of this research is to build an interconnection network using GPEN (Gigabit Passive Ethernet Network) technology so as to provide convenience for network admin users in managing, controlling, and maintaining each client, making it easy for network technicians when a breakdown occurs, and Providing easy client user authentication in the area (PUSKOM) IAIN Bengkulu. The research method used is research and development research, the research method used to aim at developing, producing products and waiting for the effectiveness of the research method. Developing a wireless-based network, namely a point-to-point radio to a network with GPEN technology (Gigabit Passive Ethernet Network) as a switch and router that supports gigabit ports and to control and monitor bandwidth on each client. Better network quality and efficiency so that activities such as browsing, uploading and downloading are faster.
Perancangan Sistem Otomatisasi Penyalaan Lampu, Kipas Angin, dan Proyektor Dalam Ruang Kelas Rinaldi, Reza Satria; Lase, Yosri Riadi; Rosa, M. Khairul Amri
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 2 (2021): Amplifier November Vol. 11, No. 2 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i2.18317

Abstract

In general, the control of using electronic equipment in the classroom manually. Sometimes lecturers or students forget to turn off electronic equipment after the class so that there is a waste of electrical energy use. Application of automation of using electronic equipment is one solution to overcome these problems so that electrical energy becomes more efficient. This study designed a prototype of an automation system for electrical equipment in the classroom, namely lights, fans, and projectors. This system was also to turn off the electricity when nobody was in the class. The automation system controls the use of electrical energy in devices in the classroom through on-off control of the electrical network components connected to each device. In this design, the PIR sensor can detect the presence of people up to a distance of 7 meters. The Arduino Uno controller activates the lights in the class when the LDR Sensor detects a light intensity of less than 200 Lux. Then, the fan is active when the LM35 sensor detects the temperature in the class above 28oC. The FC-04 sensor detects the sound of clapping for control of projector ignition by the controller.
Implementasi Pengendalian Robot Mobil Pencari Target Dan Penghindar Rintangan khairil, khairil; Umi Kalsum, Toibah
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 2 (2021): Amplifier November Vol. 11, No. 2 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i2.19170

Abstract

Robots are useful to help humans in performing jobs that require high precision, substantial labor, repetitive and dirty work, and high-risk or dangerous jobs. Those are the high-risk human jobs that a robot can do. Wheeled robots have the ability to go to the targeted position. Proportional control is used to control the movement of robots. In addition, the robot will also be equipped with PI control method to adjust the actual wheel speed of the robot. The block diagram of the obstacle-driven avoider robot consists of push button, rotary encoder, ultrasonic sensor, Atmega, IC L298D, DC Motor and Light. The results of the obstacle-driven avoider robot, wheeled robots have the ability to run in accordance with the desired black line. Proportional control is used to control the movement of robots. In addition, the robot will also be equipped with ultrasonic sensors to set the robot in avoiding obstacles. Based on the results of testing and analysis that have done, it is suggested that there is tool that can be provided to develop a more sophisticated technology like adding sensors or more features.
RANCANG BANGUN ALAT PASTEURISASI NON THERMAL DENGAN PULSED ELECTRIC FIELD (PEF) Anggraini, Ika Novia; Simarmata, Elsara Krysti; Daratha, Novalio; Herawati, Afriyastuti; Rodiah, Yuli
JURNAL AMPLIFIER : JURNAL ILMIAH BIDANG TEKNIK ELEKTRO DAN KOMPUTER Vol. 11 No. 2 (2021): Amplifier November Vol. 11, No. 2 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jamplifier.v11i2.16383

Abstract

ABSTRACTPackaged beverages have become a product that is very much on the market both internationally and nationally. In the process of making packaged beverages, in order to last longer the microbes in the drink must first be inactivated in order for the drink to last longer, the microbial inactivation process in the drink is called pasteurization. Convernsional pasteurization is done by heating the drink to be in production. But the high temperature of the drink can change the taste, color, and even nutrition of the drink. This is underpinning the non-thermal pasteurization process by using high voltage impulses (Pulsed Electric Field,PEF). PEF is a technology that utilizes high voltage DC to produce a field between two electrodes. Pateurization occurs when between electrodes there is milk that is flowed with high voltage DC. High voltage generation is performed using flyback transformers with voltage output up to 30 kV. In the pasteurization process given 6 voltage variations namely 5, 10, 12,5, 15, 20, and 30 kV. Pasteurization results are then tested in fmipa microbiology laboratory to find out the success of the tools that have been made. In each voltage variation it is obtained that all treatments have reached pasteurized milk quality standards based on SNI where at 5kV voltage variation can inactivat microbes up to 83.33%, voltage variation of 10kV can inactivat microbes up to 94.5%, At a voltage variation of 12.5 kV can inactivae microbes up to 83.6%, 15kV voltage variation can inactivae microbes up to 88.8%, while voltage variation of 20 kV can inactivae microbes up to 84.2% and at voltage variation 30 kV can inactivae microbes up to 84.8%.Key Words: PEF, Flyback Transformer, ZVS Driver, Pasteurization.

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