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Asrizal Asrizal
Department of Physics, Universitas Negeri Padang
Control & Systems Engineering Electrical & Electronics Engineering Materials Science & Nanotechnology Physics

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Journal : Journal of Experimental and Applied Physics

 1 
Development of Measurement Instrument of Translation Motion in Constant Acceleration Experiment using Infrared Obstacle Avoidance Sensor Module and MPU 6050 Based on ATmega32U4 Microcontroller Ilham Hafidzh Wijaya; Yohandri Yohandri; Asrizal Asrizal; Yulkifli Yulkifli
Journal of Experimental and Applied Physics Vol 1 No 3 (2023): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v1i3.29

Abstract

Physics is a field of study that holds significant influence in the development of science and technology. Many natural phenomena are related to physics and can be explained through experiments. From the results of conducted research, it is known that measurements for Translation Motion in Constant Acceleration experiments were carried out manually using standard measuring tools. The limitations of these measuring tools rendered the process impractical and susceptible to errors. To overcome these limitations, an experimental device equipped with automated digital measurement instruments was developed. The objective of this research is to ascertain the design specifications and performance specifications of the experimental device. The performance specifications of the experimental device include a track length of 2 meters and a width of 13mm. It involves the use of a servo motor, Infrared Obstacle Avoidance Sensor Module, and MPU 6050. The design specifications of the experimental device include an angle measurement accuracy of 92%, time measurement accuracy of 89%, velocity measurement accuracy of 87%, and time measurement precision of 92%. So, it is concluded that the measurement instrument can work properly.
Design A Real-Time Fish Feeding Control System on The Internet of Things Mia Febrianty; Asrizal Asrizal; Hufri Hufri; Rio Anshari
Journal of Experimental and Applied Physics Vol 1 No 3 (2023): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v1i3.37

Abstract

Scheduled feeding is very important in fish farming. Proper and scheduled feeding will increase yields and pond water quality. Fish farmers often ignore feeding according to fish needs. So that it worsens the water quality, as a result the yield and survival of fish decreases. This problem can be overcome by creating a system that can provide feed based on the ideal dose of feed to fish, in order to reduce pollution of pond waters and increase fish survival. This study aims to determine the specifications of accuracy and precision of laboratory scale systems and specifications of accuracy of field test scale systems. The research method used is engineering research method. The data obtained is measured by direct and indirect measurement techniques. This system uses wemos D1 mini, arduino cc, blynk software, RTC DS3231, load cell, DS18B20 and servo. The laboratory scale accuracy and precision specifications of the feeding control system on the measurement of the weight of the system tube feed are 99.70% and 99.80%, on the system container are 98.87% and 98.87%, while on the system temperature measurement are 98.10% and 97.96%. The accuracy value of the field test scale is 98.38%.Based on the results of testing the accuracy and precision of the fish feeding device, it is found that the design of a real time fish feeding system based on the internet of things can be used in monitoring and automatic feeding activities.
Hydroponic Plant Nutrition Measurements System using Display Smartphone Internet Based of Things Dwina Melisa; Asrizal Asrizal; Yulkifli Yulkifli; Hufri Hufri; Harman Amir
Journal of Experimental and Applied Physics Vol 2 No 1 (2024): March Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i1.38

Abstract

Hydroponics is an alternative for people who want to garden, but don't have enough space to grow crops. The most important issue that must be considered in cultivation is the provision of sufficient nutrients for plants. Lack of nutritional value results in less maximum yields. Nutritional measurements can be carried out without having to go to the cultivation site. The purpose of this study was to determine the performance specifications of the nutrient measurement system components for hydroponic plants. Determine the precision and accuracy of the nutrient measurement system on the results of limited-scale tests and field-scale test results. This type of research is engineering research. The data analysis technique used is descriptive data analysis and error analysis. From the data analysis it can be stated that three research results are first, the specification of system components includes sensor performance, ESP8266, LCD, Blynk. Second, the precision of the average nutrition on a limited scale is 99.97% and the average accuracy is 99.14%. Third, precision of nutrition on a field scale is 99.47% and the average accuracy is 99.14%. Field-scale test results were carried out for 3 days to obtain varied data. For cultivators of hydroponic plants it is useful for measuring nutritional value so they no longer make measurements manually.
Design and Build an Automatic Feeding System for Catfish Farming based-on Internet of Things (IoT) Mukhlis Surito Fajri; Asrizal Asrizal; Harman Amir; Mairizwan Mairizwan
Journal of Experimental and Applied Physics Vol 2 No 4 (2024): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i4.64

Abstract

Fish farming represents a sector aimed at boosting the national economy. The Ministry of Marine Affairs and Fisheries has prioritized programs to support the growth of catfish farming.. However, there are still obstacles experienced by cultivators such as irregularities in feeding time and uneven distribution of feed. Therefore, a solution is needed in the form of designing an efficient system in providing fish feed. The system is developed using ESP32 microcontroller, servo motor, stepper motor, loadcell, and connected to the website for remote control. The system utilizes a motor, load cell, and is integrated with a website for remote operation. This research employs an engineering approach, focusing on system design and testing. The findings indicate that the system achieves an average feed weight measurement accuracy of 98.31%, demonstrating reliable performance in both laboratory and field-scale tests. This system is expected to increase efficiency, practicality, and effectiveness in catfish farming, as well as providing real-time information about feed and feeding schedules.
Design and Construction of a Mathematical Pendulum Harmonic Motion Experiment System Using Arduino Based E18-D80Nk Proximity Sensor Endri Mulyadi; Asrizal Asrizal; Harman Amir; Mona Berlian Sari
Journal of Experimental and Applied Physics Vol 2 No 3 (2024): September Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i3.68

Abstract

Experimentation is part of the stages of the scientific method that has a big role to test a phenomenon that occurs. One of the physics lessons proven through experiments is the harmonic motion of a mathematical pendulum. One of the problems with the existing experimental equipment is the variation in rope length and the manual measurement of rope length. One solution to overcome this problem is to create a Mathematical Pendulum Harmonic Motion Experiment System Using the Arduino-based E18-D80NK Proximity Sensor. This tool is designed to facilitate practitioners when conducting experiments and save practicum time. Research was conducted to determine the accuracy and precision of the tool. The experimental results of the device can be displayed on the LCD.  The precision and accuracy of the experimental system with the following details: Average error of 0.65% for comparison of system t value and standard t and average error of 0.55% for comparison of system gravitational acceleration value with theoretical gravitational acceleration for variation of rope length. As for the average value of accuracy of 0.9990583 or 99.9% for a fixed rope length, and the average accuracy of 0.99793367 or 99.7% for a fixed number of oscillations.
Design of a Free Fall Motion Experiment Using E18-D80NK Proximity and HC-SR04 Ultrasonic Sensors: An IoT-Based Approach Fauzan Syafril Yudha; Yulkifli Yulkifli; Asrizal Asrizal; Yenni Darvina
Journal of Experimental and Applied Physics Vol 2 No 4 (2024): December Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i4.76

Abstract

Electronics plays an important role in science, especially in the advancement of school laboratory equipment which is one of the pillars of education. Many laboratories equipment currently still use manual methods. This research aims to develop an IoT-based free fall motion measurement system that displays measurement results automatically. This system uses E18-D0NK proximity sensor and HC-SR04 ultrasonic based on ESP32. This research focuses on engineering a free fall motion measurement tool with the method of dropping objects. Data collection is done through direct and indirect approaches. Direct measurement involves reading the value on the smartphone screen, while indirect measurement is used to evaluate the level of accuracy and precision of the digital measurement system compared to conventional methods. The data obtained was statistically analyzed and represented in graphical form to provide a comprehensive understanding of the performance of the developed system. From the data analysis, there are two important findings. First, the measurement system includes an E18-D0NK proximity sensor for starting and stopping the movement of objects and an HC-SR04 ultrasonic sensor for measuring height, all housed in a toolbox. Second, the system shows excellent average accuracy and average precision.
Systematic Literature Review of TCS34725 Sensor Applications in Various Fields Widya Anisa; Mona Berlian Sari; Yohandri Yohandri; Asrizal Asrizal
Journal of Experimental and Applied Physics Vol 2 No 3 (2024): September Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v2i3.83

Abstract

The TCS34725 sensor, recognized for its precise color detection across the visible spectrum, is essential in agriculture, food safety, healthcare, security, and industry. As automation advances, reliable color detection systems are crucial for replacing subjective and inconsistent manual assessments. However, challenges such as varying lighting conditions and the need for advanced data processing techniques impact its accuracy and integration. Enhanced algorithms and machine learning applications enable real-time analysis, reducing human error and ensuring reliable results. The sensor's versatility supports applications such as monitoring crop ripeness, detecting harmful substances in food, and aiding medical diagnostics like urine analysis. This study conducts a systematic literature review to explore trends, advancements, and gaps in the sensor's applications. Findings emphasize its role in advancing Industry 4.0 by digitizing processes, fostering sustainable innovations, and improving operational efficiency, reliability, and quality of life.
Co-Authors Dwina Melisa Endri Mulyadi Fauzan Syafril Yudha Harman Amir Hufri Hufri Ilham Hafidzh Wijaya Mairizwan Mairizwan Mia Febrianty Mona Berlian Sari Mukhlis Surito Fajri Rio Anshari Widya Anisa Yenni Darvina Yohandri Yulkifli Yulkifli