Articles
<![CDATA[Analisis Karakteristik Elektrik Bentuk Geometri Jalur PCB Menggunakan Pendekatan Finite Element ]]>
<![CDATA[Maria, Putut Son]]>;
<![CDATA[Susianti, Elva]]>
<![CDATA[ Jurnal Teknik Elektro Vol 10, No 1 (2018): Jurnal Teknik Elektro ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang ]]>
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DOI: 10.15294/jte.v10i1.13826
<![CDATA[Some Electronics Computer Aided Design (ECAD) softwares have provided several track shapes to design a Printed Circuit Board (PCB), such as right angle, rounded and trapezoidal. However, it is quite difficult to find scientific literature that can be used as a guide which explains and compiles directly about each character of the geometry. This study aims to analyze and to observe the electrical characteristics of the geometry shape on the Printed Circuit Board (PCB) path by using the finite element method. Each PCB path shape is modeled according to its geometry and physical properties, then calculated for its electrical quantity and be observed for its performance at given current. Simulation and numerical calculations showed that the shape of trapezoidal and rounded geometry have lower resistance and planar inductance of 6.8% and 7.39% respectively than the right angle shape.]]>
<![CDATA[Uji Kinerja Surface Scanner 3D Menggunakan Sensor VL53L0X dan Mikrokontroler ATMEGA8535 ]]>
<![CDATA[Maria, Putut Son]]>;
<![CDATA[Susianti, Elva]]>
<![CDATA[ Jurnal Teknik Elektro Vol 11, No 1 (2019): Jurnal Teknik Elektro ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang ]]>
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DOI: 10.15294/jte.v11i1.18821
<![CDATA[Digital data recording of the geometry of 3-dimensional objects require a 3D scanner tool which are mostly using an imagery sensor. However there is hardly used information of scanned result, named color. Imagery sensor requires high spesification processing unit as capable as a personal computer for data acquisition processing. This research aims to build a 3D surface scanner using a time of flight laser ranging sensor and to develop its simple function to become more valuable device. Using point to point displacement method, the sensor measures the distance between the outermost point of the object and the sensor surface perpendicularly, once when one measurement is done then the object to be rotated along with the rotary table. The prototype was built using the VL53L0X sensor and ATMEGA8535 microcontroller as a motor controller for rotary table and vertical axis. Scanned data is sent from the microcontroller to the computer to be visualized in real time. The results show that the VL53L0X sensor is suitable for scanning convex objects but it is not capable to handle objects with multiple cavities.]]>
<![CDATA[Implementasi Algoritma Kalkulasi Interupsi pada Rancang Bangun Tachometer Digital ]]>
<![CDATA[Maria, Putut Son]]>;
<![CDATA[Susianti, Elva]]>
<![CDATA[ Jurnal Teknik Elektro Vol 10, No 2 (2018): Jurnal Teknik Elektro ]]>
Publisher : <![CDATA[Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang ]]>
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DOI: 10.15294/jte.v10i2.16350
<![CDATA[Tachometer is an important tool for measuring the rotational speed of electro-mechanical machines and other rotating objects. In a closed-loop system, it should have a mechanism by which sensory instruments must be able to produce and deliver feedback values that can be fetched by the controller. Most commercial tachometers do not have such data communication features, making it difficult to be employed in closed loop systems. This study aims to develop a tachometer which is programmed using calculation on interrupt-based algorithm and has data communication capabilities as well. The algorithm was designed over the minimum features of a microcontroller chip, namely a timer and interrupt. The proposed algorithm that was tested on the prototype results good performance for the typical electro-mechanical machines with a measurement error range between 0.1 and 1.2%. The equation for the calculation of rotation per minute (rpm) has also been revised to provide a more valid formula.]]>
<![CDATA[PERFORMANCE TEST SISTEM KUALIFIKASI BIJI KOPI MENGGUNAKAN PENGOLAHAN CITRA METODE LOCAL BINARY PATTERN DAN ALGORITMA LEARNING VECTOR QUANTIZATION ]]>
<![CDATA[putut son maria]]>;
<![CDATA[elva elva susianti]]>
<![CDATA[ SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 14, No 2 (2017): JUNI 2017 ]]>
Publisher : <![CDATA[Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau ]]>
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DOI: 10.24014/sitekin.v14i2.3939
<![CDATA[ Kualifikasi biji kopi di setiap negara di dunia mengacu pada standar yang berbeda-beda. Indonesia menggunakan standar kualifikasi berdasarkan sistem total nilai cacat(defect) pada setiap rendemen sampel, dan standar ini terdokumentasi pada SNI 01-2907-2008. Paper ini adalah hasil eksperimen yang berupaya membangun sistem kualifikasi biji kopi menggunakan teknik pengolahan citra digital yang bertujuan untuk menguji dan mengukur kinerja metode ekstraksi fitur menggunakan algoritma local binary pattern(LBP), dan mengkombinasikan dengan learning vector quantization(LVQ) sebagai classifier untuk kualifikasi biji kopi. Gambar berwarna dari rendemen biji kopi yang disimpan dalam bentuk file dikonversi menjadi gambar skala keabuan. Dari gambar skala keabuan kemudian dikuantisasi menjadi 16 level keabuan dan dibuat histogram dari setiap sampel gambar. Data histogram yang dipakai pada penelitian ini dipilih pada 8 atribut data yang memiliki deviasi standar di atas 250. Topologi LVQ menggunakan 8 node vektor input dan 7 node output, pelatihan jaringan dilakukan sebanyak 10 epoch untuk setiap 70 iterasi sampel pelatihan. Percobaan menunjukkan bahwa akurasi kombinasi LBP-LVQ hanya mencapai 52.86 % dan 40 % berturut-turut untuk pengujian secara off-line dan on-line.]]>
<![CDATA[Rancang Bangun Robot Observasi Bawah Air - ROV (Remotely Operated Vihicle) Menggunakan Arduino UNO ]]>
<![CDATA[Elva Susianti]]>;
<![CDATA[Nanda Ardian Syahputra]]>;
<![CDATA[Agus Urip Wibowo]]>;
<![CDATA[Putut Son Maria]]>
<![CDATA[ Jurnal Elektro dan Mesin Terapan Vol. 7 No. 2 (2021): Jurnal Elektro dan Mesin Terapan (ELEMENTER) ]]>
Publisher : <![CDATA[Politeknik Caltex Riau ]]>
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DOI: 10.35143/elementer.v7i2.5207
<![CDATA[Abstract This study describes the design of an underwater robot-Remotely Underwater Vehicle (ROV) which is controlled using a computer. The robot is controlled remotely using a GUI application built using VB. The microcontroller used as the processor is Arduino Uno R3 with a web camera as an eye to determine the next robot movement. This robot uses three motors as the driving force, and Bilge Pumps as the driving motor. The robot skeleton is made of acrylic by adding a float so that the robot can float on water. All electronic devices are controlled using cables. The robot can maneuver up to a depth of 2.25m, with the robot's response to movement commands, which is 61.935ms – 232.752 ms]]>
<![CDATA[DESAIN DAN UJI KINERJA CONTACTLESS DIGITAL TACHOMETER DILENGKAPI FITUR KELUARAN TEGANGAN ANALOG ]]>
<![CDATA[Putut Son Maria]]>;
<![CDATA[Ahmad Rendy]]>
<![CDATA[ Seminar Nasional Teknologi Informasi Komunikasi dan Industri 2017: SNTIKI 9 ]]>
Publisher : <![CDATA[UIN Sultan Syarif Kasim Riau ]]>
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<![CDATA[Tachometer adalah instrumen yang memiliki fungsi untuk mengukur kecepatan rotasi sebuah obyek. Produk tachometer komersil sebagian besar hanya memiliki satu fitur saja yaitu menampilkan hasil pengukuran pada panel display. Hal ini menjadi masalah jika diterapkan pada sistem monitoring kontinyu dan pada sistem umpan balik. Sinyal atau informasi dari piranti ukur biasanya dinyatakan dalam bentuk besaran listrik jika ingin dijadikan sebagai sinyal umpan balik. Penelitian ini bertujuan untuk membangun tachometer dan mengukur kinerja sebuah tachometer yang memiliki fitur display dan output data analog. Komponen sensorik yang digunakan adalah photodioda untuk mendeteksi reflective-obstacle, dan metode perhitungan putaran obstacle menggunakan algoritma event-driven interrupt. Pengolah sinyal pada penelitian ini menggunakan arduino uno. Informasi rpm dari tachometer ditampilkan pada LCD dan dalam bentuk tegangan analog melalui rangkaian digital to analog(DAC) dengan konstruksi R-2R ladder beresolusi 8 bit. Data hasil pengujian menunjukkan akurasi tachometer pada penelitian ini mencapai 98.6 % dan tachometer mampu mengukur secara baik pada jarak maksimal 9 cm dari obyek.]]>
<![CDATA[PEMODELAN ELECTROSTATIC PRECIPITATOR JENIS PLATE-TO-PLATE MENGGUNAKAN FINITE ELEMENT METHOD ]]>
<![CDATA[Putut Son Maria]]>;
<![CDATA[Elva Susianti]]>
<![CDATA[ Jetri : Jurnal Ilmiah Teknik Elektro Jetri Volume 16, Nomor 2, Februari 2019 ]]>
Publisher : <![CDATA[Website ]]>
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DOI: 10.25105/jetri.v16i2.3052
<![CDATA[ The manufacturing of physical device of electrostatic precipitator (ESP) requires a costly budget. The risk of performance failure of an ESP device could be minimized by simulating an ESP using a finite element method program. The performance of the ESP model of parallel plate type using COMSOL Multiphysics program was simulated in this research. The ESP geometric model was drawn in 3D specifically, then it was integrated using laminar flow, electrostatic and particle tracing studies. Laminar flow and electrostatic studies are simulated simultaneously and the results are coupled by a study of particle tracing. The simulated test particle consists of two types: particles with physical features of 60 to 100 mesh and microparticles 0.5 to 1 μm. The result showed a good agreement between the simulations and the experiments. The size and type of particle are crucial to the successful performance of an ESP device. Keywords: electrostatic precipitator, COMSOL multiphysics, microparticle Pembuatan perangkat fisik electrostatic precipitator (ESP) membutuhkan biaya yang cukup mahal. Risiko kegagalan kinerja dari perangkat ESP dapat diminimalkan dengan cara membuat simulasinya menggunakan program berbasis finite element method. Pada penelitian ini disimulasikan kinerja model ESP jenis pelat paralel menggunakan program aplikasi COMSOL Multiphysics. Bentuk geometri model ESP digambar secara 3D berdasarkan ukuran yang spesifik, kemudian model diintegrasikan menggunakan studi laminar flow, elektrostatik dan particle tracing. Studi laminar flow dan elektrostatik dikalkulasi secara bersamaan dan hasilnya dikopel oleh studi particle tracing. Partikel yang disimulasikan terdiri dari dua jenis yaitu partikel dengan ciri-ciri fisik 60 sampai 100 mesh dan partikel mikro 0,5 sampai 1 µm. Hasilnya adalah terdapat kesesuaian antara simulasi dibandingkan dengan eksperimen. Ukuran dan jenis partikel sangat krusial terhadap keberhasilan kinerja perangkat ESP. Kata kunci: electrostatic precipitator, COMSOL Multiphysics, partikel mikro]]>
<![CDATA[Analisis Kemampuan Kerja Mikrokontroler MCS-51 sebagai Frequency Counter ]]>
<![CDATA[Putut Son Maria]]>;
<![CDATA[Elva Susianti]]>
<![CDATA[ Media Informatika Vol 21 No 2 (2022) ]]>
Publisher : <![CDATA[P3M STMIK LIKMI ]]>
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DOI: 10.37595/mediainfo.v21i2.99
<![CDATA[Generator fungsi atau Function generator adalah alat yang menghasilkan sinyal listrik dengan amplitudo dan frekuensi yang dapat diubah-ubah. Pada kegiatan praktikum di laboratorium elektronika, perangkat generator fungsi dan oscilloscope adalah dua alat ukur yang wajib untuk menunjang proses pembelajaran mahasiswa. Ketiadaan fitur penampil frekuensi pada sebuah function generator mengakibatkan mahasiswa pemula menjadi sulit untuk memperkirakan besaran frekuensi yang diinginkan dan efeknya adalah proses praktikum(pengambilan data) menjadi lebih lama. Penelitian ini memaparkan rancangan frequency counter yang dapat diaplikasikan untuk pengukuran rentang frekuensi rendah hingga menengah menggunakan sistem digital. Rancangan dibangun menggunakan mikrokontroler AT89C2051 dari keluarga MCS-51 yang memiliki fitur minimum agar nilai efisiensi dari resource-nya menjadi tinggi. Hasil desain frequency counter pada penelitian ini terbukti secara simulasi dapat berfungsi secara baik dengan kemampuan daya ukur frekuensi maksimum sebesar 43 KHz menurut perhitungan machine cycle, walaupun demikian secara simulasi ternyata sistem mampu mengukur hingga 47 KHz dengan nilai error 0.223% namun dengan konsekuensi tampilan yang lambat.]]>
<![CDATA[Prototipe Jemuran Pakaian Otomatis Menggunakan Wemos D1R2 Dengan Notifikasi Suara dan Email Dari Thinger.io ]]>
<![CDATA[Ardi Prawido Ramadhan]]>;
<![CDATA[Jufrizel]]>;
<![CDATA[Putut Son Maria]]>;
<![CDATA[Hilman Zarory]]>
<![CDATA[ Jurnal Sistem Cerdas Vol. 5 No. 3 (2022) ]]>
Publisher : <![CDATA[APIC ]]>
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DOI: 10.37396/jsc.v5i3.263
<![CDATA[Abstract— The Meteorology, Climatology and Geophysics Agency (BMKG) predicts that the start of the rainy season in Indonesia will occur from September to November 2022 with the peak of the rainy season expected to occur in December 2022 and January 2023. The rainy season that will occur will certainly hamper the process of drying clothes and inefficient use of time because they have to lift clothes when it rains and dry them again when the rain stops. Another problem is when you are sleeping or traveling so it is not possible to remove your clothes when it is going to rain. As a result the clothes become damp or wet. The purpose of this research is to prevent damp/wet clothes again when it rains and to save time when lifting and drying clothes during the rainy season. The method used in this study is the Research and Development (R&D) method. It begins with reviewing previous research so that it can determine what hardware is needed, followed by making a flowchart then assembled into a prototype tool that is integrated with the Internet of Things (IoT). The test results show that this automatic clothesline can remove the clothes from the room automatically when the rain sensor and the LDR sensor detect rain indications such as cloudy and drizzling, and vice versa will put clothes in automatically when the weather is cloudy or raining. The stepper motor is coupled with a linear actuator which functions to move the clothesline in and out. There are sound notifications and email messages from Thinger.io when the clothesline has entered or left. The prototype is equipped with an emergency system so that it can insert and remove the clothesline when the sensor is damaged.]]>
<![CDATA[Alat Monitoring dan Notifikasi Penggunaan Daya Listrik Rumah Tangga Berbasis Internet Of Things Menggunakan Blynk 2.0 ]]>
<![CDATA[Arif Sandira]]>;
<![CDATA[Jufrizel]]>;
<![CDATA[Putut Son Maria]]>;
<![CDATA[Aulia Ullah]]>
<![CDATA[ Jurnal Komputer Terapan Vol. 8 No. 2 (2022): Jurnal Komputer Terapan ]]>
Publisher : <![CDATA[Politeknik Caltex Riau ]]>
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DOI: 10.35143/jkt.v8i2.5761
<![CDATA[Every year the number of electricity consumers continues to increase, but knowledge about electricity is still poorly understood, especially for consumers in the household aspect even though digital kWh meters have been applied, this causes the use of electrical energy to be less efficient. This study aims to create a monitoring tool for the use of electric power as well as a notification so that consumers can save electricity costs. The method used is research and development to improve existing products by testing their effectiveness. This tool uses the PZEM-004T module as a current and voltage reader sensor, and Blynk 2.0 as an internet of things platform. The test results show the tool can read the voltage with a difference of 0.7V and the current with a difference of 0.1433A. The tool can monitor electricity, and there are notifications on tools and smartphones in the form of warnings for 500 Watt usage, increasing the number of usages of Rp. 5000, and Offline conditions. The experiment of implementing the tool for 6 days, consumers were able to save electricity usage as much as 0.51kWh or equivalent to Rp.781.01 compared to without the tool.]]>
