Jhav Sund Oktoricoento
Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Studi Efek Gangguan EMP (Elektromagnetic Pulse) pada Perangkat Elektronik Jhav Sund Oktoricoento; Muhammad Ramdani; Sahrudin Sahrudin; Kun Fayakun; Harry Ramza; Akhiruddin Maddu
Prosiding Seminar Nasional Teknoka Vol 3 (2018): Prosiding Seminar Nasional Teknoka ke - 3
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (871.986 KB) | DOI: 10.22236/teknoka.v3i0.1237

Abstract

The existence of electronic devices in human life is very close today. Various areas of human life is always supported by electronic devices, ranging from the field of telecommunications to the security field, one of which is the surveillance system. Utilization of electronics in the military field is now known as Electronic Warfare (EW). One type of electronic attack is electromagnetic jamming. This study aims to examine the effect of EMP and determine the value of interference from the electromagnetic field to the surveillance system in the form of mini cameras. Variables in making measurements consist of source voltage, interference distance, and coil that each value is varied. Formulation of measurement data using Design Expert 11 with D-Optimal Response Surface method. The results showed that the maximum magnetic flux value generated by the signal jammer was 0,479 Wb / m2, the maximum interference value at the mini camera spectrum level was 2 dB, and the maximum interference value most often occurred at 4,9 MHz. The correlation coefficient value of the influence of the electromagnetic field on surveillance system between the predicted value of the simulation and the direct measurement value is -0,55093384.
Energi Alternatif Melalui Getaran Beban Mekanis Dimas Ramadhan Putra; Jhav Sund Oktoricoento; Sahrudin Sahrudin; Mohammad Mujirudin; Harry Ramza; Oktarina Heriyani; Akhiruddin Maddu
Prosiding Seminar Nasional Teknoka Vol 3 (2018): Prosiding Seminar Nasional Teknoka ke - 3
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (674.289 KB) | DOI: 10.22236/teknoka.v3i0.2802

Abstract

Electricity needs increase over time. Electricity is a very important requirement that is used to facilitate human life, for example for lighting at night, running household appliances and for various other human works. This research was carried out by making a small-scale prototype model which was measured by Digital Multimeter DT830B series.The data obtained from the testing of piezoelectric sensors showed that when compiled in series, the highest output power was 19.4888 μW with a maximum load of 186 kg, while for the preparation of sensors in parallel the resulting power reached 61.5043 μW from a load of 186 kg as an indication of the mechanical load vibration provided.
Mesin Pengupas Bawang Mudah – Alih (Portable Onion Peeler Machine) Sahrudin Sahrudin; Dimas Ramadhan Putra; Jhav Sund Oktoricoento; Mohammad Mujirudin; Harry Ramza
Prosiding Seminar Nasional Teknoka Vol 3 (2018): Prosiding Seminar Nasional Teknoka ke - 3
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1106.58 KB) | DOI: 10.22236/teknoka.v3i0.2819

Abstract

The process of processing agricultural products into a food for the community becomes an interesting thing to know more deeply. One of them is pengelolahan onion with a lot of capacity for stripping process. In the process of onion processing there are several obstacles that make its production to inhibit one of them is in stripping the skin of onion and garlic by means of chopped to peel it. The producers often find it difficult to clean the onion skin at the time of stripping, let alone a large degree. The design of this tool is made to assist in the process of stripping the onion in large quantities using electric motor power as the driving force, the microcontroller as the brain to run the process of designed devices and load sensors to calculate the value of the weight capacity of the onion. The ties cable serves as a helper in stripping onions by banging them. With the aim of Determining the value of the efficiency of the thickness of the peel skin and the weight capacity of the onion, so that the best variation to be used is the variation of the combination with a value of efficiency of 17% for thickness and 3% for the weight capacity of the onion.