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All Journal BERKALA FISIKA International Journal of Artificial Intelligence Research
Isnain Gunadi
Laboratorium Instrumentasi dan Elektronika Jurusan Fisika UNDIP
Computer Science & IT Electrical & Electronics Engineering Physics

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RANCANG BANGUN PENGENDALI MOTOR STEPPER UNTUK DETEKSI JUMLAH OBYEK PUTAR DENGAN MENGGUNAKAN KOMPUTER Sumariyah, Sumariyah; Sudarmanto, Agus; Gunadi, Isnain
BERKALA FISIKA Vol 14, No 1 (2011): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

It has been designed a mechanical equipment what could moving rotate each 45° and moving up and down betake to sensor hole, that be drive by two stepper motors. The operation of both stepper motors use Turbo Pascal language programming 5.5 version. The mechanical equipment could be operated in a automatically that is for moved the object rotate each 45° then the object betake down aim sensor hole and execute detection the object so after detected then the object move ascend aim first position. Result of using this mechanical equipment was have appearing result from detection object be automatically that is amounting to eight objects.   Keyword : PC, stepper motors, object rotate.
Rancang Bangun Alat Pengukur Densitas Optik Radiograf Sinar-X Digital Sumariyah, Sumariyah; Gunadi, Isnain; Mujib, Syaiful
BERKALA FISIKA Vol 9, No 4 (2006): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

A digitized X-ray radiograph’s optical density measurer has been designed.  It’s scale work is between  0.00 to  4.42. The main part of  this instrument is an optocopler sensor which will convert the light passing by  to an analog current. An optocopler circuit is a combination of LED as a light source, and a photoresistor as a light sensor. The sensor circuit is combined with a voltage devider circuit so that the voltage caused by the light and the output is work reversely. Besides, it combined with an instrumentation amplifier which amplifies the output voltage of the whole sensor. A decoder then added to the circuit to translate the BCD code to a seven segment display. The related segment, then, turned on according to the magnitude of the output voltage. The last part is a seven segment displayer which displays the measure’s result. According to a testing oxamination, the instrument is able to produce a measurement result till a resolution of 0.01.
PEMBUATAN SISTEM KENDALI POSISI AUTOFOKUS EKSPERIMEN LENSA DENGAN MOTOR LANGKAH Gunadi, Isnain; Gernowo, Rahmat; Adi, Kusworo
BERKALA FISIKA 2015: Berkala Fisika Vol. 18 No. 4 Tahun 2015
Publisher : BERKALA FISIKA

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Abstract

The automatic lens experiment with stepper motor position control has been made. Main component of this device are stepper motor which move the lens and screen. Microcontroller is contens the programs of motor movement controller. The screen contain of Light Dependent Resistor (LDR) as voltage sensor. This image will focused when the voltage in the screen is maximum. The result of test show that the automatic measurement is more accurate than manual measurement.Keywords: Auto-Fokus, LDR, IPMC, LSW, EAPs, VCM
PEMPROGRAMAN MESIN BOR OTOMATIS BERBASIS ATMEGA 328 YANG TERINTEGRASI LCD TOUCHSCREEN NEXTION 3,2 INCHI Ikbal, Muhammad Nur; Gunadi, Isnain
BERKALA FISIKA Vol 22, No 4 (2019): Berkala Fisika Vol. 22 No. 4 Tahun 2019
Publisher : BERKALA FISIKA

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Abstract

The aim of this study is to develop an automatic drilling machine based on Atmega328integrated with the 3.2 inch-Nextion LCD Touchscreen. The drilling machine was designed to automatically determine the distance and the number of holes according to the LCD touchscreen nextion display, both for movement on the Y-axis and X-axis, using a PH268-21 series unipolar of stepper motor and was controlled by a CSD2120P type motor driver. Meanwhile, to perforate the workpiece using an AC motor with a voltage of 220 volts. Machine control used 2 Limit Switches as calculation indicators to be processed by a microcontroller that has been programmed using the Arduino IDE software and displayed on the Nextion LCD touchscreen. From the test it was found that this automation system is very accurate to produce number of holes. The accuracy of distance used as an initial indicator of this automatic drilling machine was 1 mm and it can be changed according to desired needs. Therefore, this automatic drilling machine can provide more effective and efficient results so that it is expected to help in maximizing results for industrial-scale.Keywords: limit switch, unipolar stepper motor, micro-controller, Nextion LCD touchscreen
SISTEM PENDINGIN RUANG MENGGUNAKAN TABUNG SPINNING DENGAN PRINSIP PENYERAPAN PANAS DILENGKAPI KENDALI JARAK JAUH MENGGUNAKAN GELOMBANG RADIO FREKUENSI (RF) Gunadi, Isnain; Putra, Satrio Sandi; Suseno, Jatmiko Endro
BERKALA FISIKA Vol 24, No 3 (2021): Berkala Fisika
Publisher : BERKALA FISIKA

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ABSTRAK Pada  penelitian  ini  dilakukan  rancang  bangun  sebuah  sistem  Air  Conditioning  (AC)  sederhana dengan Mikrokontroller Atmega8535  untuk  aplikasi  sistem penyejuk ruangan secara otomatis. Secara  umum,  sistem  penyejuk  ruangan  sederhana  ini  dilakukan  berdasarkan  pencampuran garam  ke  dalam  air,  sehingga  reaksi  antara  garam  dan  air  menimbulkan  penurunan  suhu. Dengan  demikian,  air  bercampur  dengan  garam  dan  garam  memiliki  titik  beku  yang  lebih rendah dari titik beku murni sehingga dapat menjadi es di sekitar tabung. Sistem ini terdiri dari 3  (tiga)  bagian  berdasarkan  fungsi  dan  tujuannya  masing-masing,  yaitu  input,  pengendali,  dan output.  Sistem  ini  menggunakan  remote  4  channel  dan  receiver  sebagai  penerima  sinyal  dari remote  sebagai  input  untuk  menghidupkan  kipas  dan  dinamo  pada  motor  tabung.  Saat  ditekan tombol  ON  pada  remote  maka  sinyal  yang  dikirimkan  dari    remote  akan  diterima  receiver  lalu receiver  akan  mengolah  sinyal  remote  yang  kemudian  dikirimkan  ke  mikrokontroller  untuk menghidupkan  sistem  alat  dan  dinamo  tabung.  Setelah  itu  untuk  menghidupkan  kipas  atur  set point    menggunakan  tombol  UP  atau  DOWN  pada  remote.  Receiver  juga  mampu  menerima sinyal remote pada jarak 1-8 meter. Output dari sistem ini berupa hawa dingin yang dihasilkan dari  pencampuran  garam  dan  air  kemudian  ditiup  keluar  oleh  kipas  lalu  dibaca  sensor.  Sistem kendali  yang  digunakan  adalah  Mikrokontroler  Atmega8535  yang  kemudian  diprogram menggunakan  CodeVision  AVR.  Berdasarkan  hasil  uji  penelitian,  sistem  dapat  bekerja  sesuai dengan  deskripsi  kerja  yang  ditetapkan  dan  alat  dapat  digunakan  untuk  menyejukkan  ruangan dengan suhu 30°C-23°C.   Mikrokontroller ATmega8535, CodeVision AVR, remote 4 channel.
Volume Determination of Symmetrical Object with Distance Parameter Using Linear Regression Method Suseno, Jatmiko Endro; Setyawan, Agus; Gunadi, Isnain
International Journal of Artificial Intelligence Research Vol 7, No 1 (2023): June 2023
Publisher : Universitas Dharma Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29099/ijair.v7i1.906

Abstract

The object’s volume is a consideration in determining the quantity of products such as eggs, fruit, piles of rice, or sand. This research aims to obtain a system for determining the volume of a symmetrical object using the linear regression method in real-time, faster, more effective, and more enjoyable. This research uses segmentation methods and linear regression to determine the volume of a symmetrical object. The objects are a pile of rice and eggs which have symmetrical shapes. The shape of the symmetry in each object is a cone for a pile of rice and an oval for an egg. The results of this research are a system of symmetrical object volume determination using the linear regression method with an accuracy score of 96.48% for piles of rice and 97.84% for an egg. This system has limitations, there are the volume value must be in the data range that has been trained and the camera phone must be the same.
Co-Authors Agus Setyawan Agus Sudarmanto Ikbal, Muhammad Nur Jatmiko Endro Suseno Kusworo Adi Putra, Satrio Sandi Rahmat Gernowo Sumariyah Sumariyah Syaiful Mujib