Garuda - Garba Rujukan Digital

Desain Alat Pengukur Energi Listrik Jarak Jauh Berbasis Mikrokontrol dengan Keakuratan yang Tinggi Leonardus Heru Pratomo
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2005
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Besar pemakaian energi listrik oleh setiap konsumen dapat diukur dengan menggunakan suatu alatpengukur energi listrik (KWh-meter), seperti yang dilakukan oleh PLN pada tiap-tiap pelanggan. KWh-meteryang tepasang akan membaca pemakaian komulatif energi yang terpakai, sehingga untuk mengetahuipemakaian energi selama satu bulan, maka penunjukan KWh-meter sekarang harus dikurangkan denganpenunjukan KWh-meter bulan yang lalu. Pada makalah ini, diusulkan suatu rancangan alat pengukur energilistrik jarak jauh berbasis mikrokontroller yang memiliki keakuratan yang tinggi, serta dapat memberikantampilan jumlah energi yang dipakai selama satu bulan. Sehingga petugas pembaca meter tidak harusberkeliling ke rumah-rumah, mereka dapat mengakses lewat pusat kendali. Sistem alat ukur KWh-meter, terdiridari beberapa alat ukur diantaranya alat pengukur beda fasa antara tegangan dan arus, pengukur tegangan danpengukur arus. Selanjutnya nilai tegangan, arus dan nilai kosinusnya dikalikan oleh mikrokontrol untukmendapatkan nilai daya sesaat. Sistem pewaktuan yang telah diprogram pada mikrokontrol dipakai untukmenghitung energi pada waktu tertentu., alat ini juga dilengkapi dengan suatu pemancar, hal ini dimaksudkanuntuk mengefektifkan sistem pencatatan dan pendataan yang nantinya akan dioperasikan oleh satu buahkomputer yang telah diprogram secara langsung dapat menampilkan berapa besar biaya yang harus ditanggungoleh setiap pelanggan.Kata Kunci: KWh-meter, tegangan, arus, beda fasa, mikrokontrol.

Perawatan Electro Motor Oil Max Pump pada Mesin Induk KM Dharma Kartika IX Andi Hendrawan; Leonardus Heru Pratomo; Siswadi Hendrawan
SAINTARA Vol 5 No 3 (2021): SAINTARA (September 2021)
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Akademi Maritim Nusantara Cilacap

Problems that arise in the engine electro motor is mechanical damage that can be caused by many things such as mechanical damage, more current, low resistance low insulation and less lubrication, excess vibration and not draw, misalignment, natural aging process and factors due to the operating pattern of the induction motor, damage that occurs in the induction motor. Data is collected through Field Research, a direct review of the objects studied. Data collected through Observation (Direct Method) researchers make direct observations about objects studied on the SHIP KM. DHARMA KARTIKA IX. Must be done maintenance of electro motor components that is by checking the electro motor components and panels.

Implementasi Alat Terapi Metode Gelombang Frekuensi Audiosonik Berbasis Kontrol Arduino Dengan Monitoring Osciloskop Florentinus Budi Setiawan; Hengky Adi Wijaya; Leonardus Heru Pratomo
Jurnal Teknologi Elektro Vol 21 No 2 (2022): (Juli - Desember) Majalah Ilmiah Teknologi Elektro
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2022.v21i02.P18

Abstract-The purpose of making this tool is to provide an alternative that can be used as a rehabilitation method for disease problems such as digestive, nervous and relaxation problems. In this present time, we need treatment facilities that can be done without face to face, to overcome these problems there is an audiosonic frequency type therapy device as an alternative in healing diseases in the field of rehabilitation. This therapy tool uses a frequency that can still be received by human hearing with a range of 20 – 20,000 Hz. How to use this therapy tool is to set the frequency you want to use and then listen to the sound produced by the therapy device. This therapy tool can be used while relaxing, reading or lying down and only takes 3 – 30 minutes. Keywords : therapy, audiosonic, sound, tool, disease, alternative

Analysis of Second-Order HPF and LPF Circuit Simulations as Digital Signal Amplification Filters Pascal Siregar; Florentius Budi Setiawan; Paskal Kariman; Leonardus Heru Pratomo; Slamet Riyadi
Emitor: Jurnal Teknik Elektro Vol 24, No 2: July 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i2.2954

The writing of this paper focuses on describing and relating simple modeling and analysis to the simulation of High-PassFilter (HPF) and Lowpass filter (LPF) designs using Op-Amp, which previously used an analog system and then converted into a digital system using input and output digital gain processing frequency which aims to strengthen the sinusoidal signal contained in the HPF and LPF systems. Filter is defined as an electrical network that is designed to pass alternating current that is increased at a predetermined frequency and blocks all alternating current that is increased at a predetermined frequency. Frequency also has types, namely analog, digital, active and passive. Analog filters are used for analog signals, digital are used for signals using digital techniques, passive filters such as resistors, capacitors, inductors, and active such as transistors or op-amps. In general, the understanding of HPF is that it passes high frequencies at the cut-off frequency and dampens low frequencies. Furthermore, LPF also has different characteristics, namely, passing low frequencies and dampening high frequencies. Currently related to digital signal processing, it can be said to be a method of manipulating, analyzing and interpreting signals, which is used to process the removal of noise or interference on several unwanted components of the signal. By knowing these characteristics, what the author did was carry out a simulation aimed at helping to obtain optimal frequency output.

Implementasi Alat Terapi Metode Gelombang Frekuensi Audiosonik Berbasis Kontrol Arduino Dengan Monitoring Osciloskop Florentinus Budi Setiawan; Hengky Adi Wijaya; Leonardus Heru Pratomo
Jurnal Teknologi Elektro Vol 21 No 2 (2022): (Juli - Desember) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2022.v21i02.P18

Abstract-The purpose of making this tool is to provide an alternative that can be used as a rehabilitation method for disease problems such as digestive, nervous and relaxation problems. In this present time, we need treatment facilities that can be done without face to face, to overcome these problems there is an audiosonic frequency type therapy device as an alternative in healing diseases in the field of rehabilitation. This therapy tool uses a frequency that can still be received by human hearing with a range of 20 – 20,000 Hz. How to use this therapy tool is to set the frequency you want to use and then listen to the sound produced by the therapy device. This therapy tool can be used while relaxing, reading or lying down and only takes 3 – 30 minutes. Keywords : therapy, audiosonic, sound, tool, disease, alternative

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