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All Journal Jurnal Elementer (Elektro dan Mesin Terapan) Proceeding Applied Business and Engineering Conference
Noptin Harpawi
Politeknik Caltex Riau
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Desain dan Implementasi Antena Mikrostrip Single Rectangular Patch Pada Band Frekuensi 1920-2180 MHz Untuk Pengisi Daya Alternatif Perangkat Berdaya Rendah Aufar Zikri; mohammad yanuar Hariyawan; Noptin Harpawi
Jurnal Elektro dan Mesin Terapan Vol. 2 No. 2 (2016): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.233 KB) | DOI: 10.35143/elementer.v2i2.105

Abstract

Menipisnya sumber energi bumi dijadikan sebagai energi listrik menyebabkan adanya pemanfaatan energi gelombang elektromagnetik sebagai energi alternatif. Untuk mendapatkan energi gelombang elektromaagnetik pada band 1920 sampai 2180 MHz diperlukan antena mikrostrip single rectangular patch yang diintegrasikan dengan modul rectifier EH300. Antena mikrostrip ini dibuat dari bahan Rogers dengan konstanta dielektrik 6,15 dan ketebalan 1,52 mm. Hasil simulasi diperoleh VSWR 1,02, Return Loss -39,93 dB, dan Gain 3,03 dBi pada frekuensi 2050 MHz. Pengujian hasil implementasi diperoleh VSWR 1,166, Return Loss -22,4 dB, dan Gain 2,83 dBi pada frekuensi 2050 MHz.
Simulasi dan Perancangan Septum pada Gigahertz Transverse Electromagnetic (GTEM) Cell dalam Pengujian Radiated Emision Trifandi Wibowo; Noptin Harpawi; Muhammad Yanuar Hariyawan
Jurnal Elektro dan Mesin Terapan Vol. 5 No. 2 (2019): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.99 KB) | DOI: 10.35143/elementer.v5i2.2525

Abstract

Gigahertz Transverse Electromagnetic Chamber (GTEM) cell merupakan suatu solusi dalam pengujian radiated immunity dan emission pada perangkat yang memancarkan sumber emisi (EMI). Septum GTEM cell yang berperan sebagai antena penerima radiasi dirancang menggunakan metode antena microstrip log periodic dipole array (LPDA). Sebelum diimplementasikan dalam perancangannya, karakteristik septum dilihat terlebih dahulu dari parameter return loss, VSWR dan gain yang dihasilkan. Desain dengan metode antena LPDA menggunakan spesifikasi khusus dengan parameter τ = 0.871 dan σ = 0.161 untuk mendapatkan gain = 7 dB. Septum dirancang dengan frekuensi Ultra Wide Band (UWB) dengan range 300 MHz – 1 GHz. Bahan substrat yang digunakan adalah FR4, dengan konstanta dielektrik sebesar 4.6 dan ketebalan 1.6 mm. Septum dirancang menggunakan simulasi CST sebelum diimplementasikan dalam pengujian radiated emision. Parameter yang dihasilkan dari hasil septum ini adalah nilai return loss -10 dB direntang frekuensi 300 MHz – 1 GHz, sementara nilai return loss terendah adalah -60.34 dB pada frekuensi 682.2 MHz dan nilai VSWR >2 pada frekuensi 300 MHz – 1 GHz dengan nilai VSWR terendah adalah 1.104 difrekuensi 552 MHz. Dari hasil pengukuran didapatkan gain sebesar 8.4 dBi dengan tipe polaradiasi directional. Septum yang dirancang berhasil melakukan pengukuran radiasi pada EMI source dan smartphone
Sistem Kendali Cerdas Penggunaan Daya Listrik Menggunakan Metode Eliminasi Nilai Tertinggi Berbasis IoT Mochamad Susantok; Noptin Harpawi; Muhammad Diono
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 (545.444 KB)

Abstract

The use of electrical equipment that exceeds the maximum power limit of the Miniature Circuit Breaker (MCB) determined by PLN so that there is a power outage is a problem for users of the household sector.The amount of initial power consumption when the electrical equipment is turned on again becomes a burden for the household sector. This can be prevented, one of which is by adjusting the electrical power load so that it does not exceed the threshold limit in the MCB. The intelligent control system in this study uses the IoT NodeMCU ESP8266 device as a sensor node that can measure the power used from electrical equipment connected to the sensor node. One of the sensor nodes calculates the total measured power of all active sensor nodes and determines the action for an overload condition. The overload condition is met if the total rated power exceeds the specified maximum power threshold. The action of this condition selects the highest power system at each sensor node and disconnects the electric current at the selected sensor node so that the electrical equipment with the highest power is off and the total power is corrected below the threshold limit. This algorithm is used to prevent disconnection in the MCB due to exceeding the electrical load or the maximum power allowed according to the provisions by PLN. The average power measurement accuracy at the sensor node is 85.9% or with a % error of 14.1% and the highest power elimination algorithm manages to keep the total power load below a predetermined threshold. As a result, electrical equipment with the highest power will always be compensated when conditions touch the maximum power threshold.
Rancang Bangun Plotter 2D Mini Berbasis Arduino Nano M.Ihsan Reza; Noptin Harpawi
ABEC Indonesia Vol. 9 (2021): 9th Applied Business and Engineering Conference
Publisher : Politeknik Caltex Riau

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Abstract

Abstract CNC (Computer Numerical Control) is a machine tool automation system that is operated by abstract programmed commands and a computer-driven control machine that produces very high precision. With this tool, for problems in making logo printing, which previously could be said to be a fairly expensive business because the equipment costs were high enough, it made it difficult for home industries and new entrepreneurs to enter the business. Testing data retrieval using different textures such as plastic, paper, cloth, and leather obtained quite satisfactory results with a percentage of 90%, Thickness testing on objects that require the height of the pen position to be adjusted according to the upper surface of the object in this experiment, the size is not a problem. The imaging process saw success at 89%. in different types affect the results of the drawing, especially on the cloth using the type of pen having a rough eye and a diameter that is too small like a twin pen, the estimated success is 65% on leather and cloth. If you use a pen with a diameter of 1.0mm-1.2mm, the success rate is 90%, but if the pen is inked with a marker it causes the ink to spread everywhere, making it 80% successful. If on paper and leather the results are 90% with any type of pen.
Co-Authors Aufar Zikri M.Ihsan Reza Mochamad Susantok Mohammad Yanuar Hariyawan Muhammad Diono Trifandi Wibowo