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Hendriko Hendriko
Teknik Rekayasa Mekatronika, Politeknik Caltex Riau, Indonesia
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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DESIGN OF AUTOMATIC BREAD CUTTING MACHINE Made Rahmawaty; rieke yolanda; Hendriko Hendriko
AUSTENIT Vol. 15 No. 2 (2023): AUSTENIT 15022023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

Before being marketed, white bread will usually be cut first. Small to medium scale bread entrepreneurs still use conventional tools in the form of standard bread knives, whose use is still less effective. This bread cutting machine is designed for small to medium sized bakers to make their work easier and more efficient. This machine is designed using a vertical blade movement method with an AC motor as the driving force and is controlled using a sequential circuit. The initial process of this machine is to press the pushbutton, then place the bread on the bread tray which has a proximity sensor as a bread detector and the cutting process is carried out, when the sensor does not detect the presence of bread the machine will stop working automatically. Electronic system control is carried out sequentially which is more efficient in its application. From the test results obtained that the thickness of the bread is 12 mm. The main driver of the cutting is 1 phase and uses a dimer to adjust the rotational speed of the 1 phase motor. The cutting process with a maximum motor speed can cut 1 loaf for 38 seconds.
DEVELOPMENT OF UNDERWATER ROV (REMOTELY OPERATED VEHICLE) SYSTEMS AND MECHANISM Tianur Tianur; Bagas Prayoga Suswanto Suswanto; Hendriko Hendriko; Made Rahmawaty
AUSTENIT Vol. 15 No. 2 (2023): AUSTENIT 15022023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

  Remotely Operated Vehicle or abbreviated as ROV is an underwater explorer robot where the robot is controlled remotely by an operator using a remote control system.  Water ecosystems certainly have various kinds of hazards that cause harm to divers, such as wild animals, waters contaminated with toxic waste, limited oxygen, and many other risks. Based on these problems, research was carried out, namely the Design and Development of Underwater ROV (Remotely Operated Vehicle) Mechanisms and Systems where the tool built is an underwater robot that uses 8 DC motors to be able to perform 12 types of movements under water. The final result obtained by the ROV is that it is able to perform all of these movements except for the right somersault and left somersault. The speed and direction of rotation of the motor is controlled by a device, namely the BTS7960 motor driver. This robot aims to measure pressure and temperature and capture images underwater to a depth of 4m. Pressure and temperature measurements were made using a BMP180 pressure sensor and a DS18B20 temperature sensor where the measurement results will be displayed on a 16x2 LCD. Based on the test results, the pressure sensor has an error rate of 3.6% and a temperature sensor of 0.34%. Images and videos are captured by a device, namely a CCTV camera where the device is connected to a laptop device as a monitor. The test produced results in the form of images and videos that were quite clear.
Co-Authors Bagas Prayoga Suswanto Suswanto Made Rahmawaty, Made rieke yolanda Tianur Tianur