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INDONESIA
Jurnal Mahasiswa TEUB
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
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Articles 2,116 Documents
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SISTEM PENGATURAN PH AIR PADA AKUARIUM IKAN KOI MENGGUNAKAN FUZZY SUGENO Muh. Ghiffari Caesa Ramadahan; n/a Rahmadwati; Eka Maulana
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Koi is one of the largest contributors to ornamental fish exports based on data from the 2014-2018 KKP, koi exports have increased from 767 kg in 2017 to 2,162 kg. The high demand for koi encourages cultivators to increase their koi fish farmingbusiness. Koi live in freshwater waters with a pH ranging from 7.5 to 8.5 with a tolerance of 6-9 in calm water currents and have many aquatic plants. Continuous monitoring of water quality, especially pH levels, is very much needed. Monitoring the pH level of water in fish farming ponds is currently still done using the manual method, namely by measuring directly to the aquarium which takes a long time and is inefficient. So that this problem can be overcome, a pH control device in the aquarium is made that can monitor and control pH levels continuously in the aquarium. Controlling pH levels in aquarium water is done by giving a certain amount of acid (pH down) or alkaline (pH up) solution that can increase and decrease pH levels so that the pH in aquarium water is always stable in a predetermined range. The acid or base solution is sucked up by a water pump motor to be discharge
PENGARUH PENAMBAHAN ARANG TEMPURUNG KELAPA DENGAN INJEKSI FREKUENSI TINGGI TERHADAP KINERJA ELEKTRODA PELAT Affan Rafli Andriansyah; Mochammad Dhofir; Tri Nurwati
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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The development of power systems in modern times places more demands on the safety, stability of power system operations. The grounding system is very important to ensure the safe and reliable operation of the power system to ensure the safety of people and the devices contained in a system when a fault occurs. This disturbance occurs when there is a short circuit current and fault current from lightning. Therefore, a system is needed to secure humans and electrical devices, namely a grounding system. Grounding system is a conductor connection system that connects systems, equipment bodies, and installations with earth/ground so as to protect humans and installations from the danger of abnormal currents. A good grounding system has a small resistance value. The resistance value is influenced by several factors, namely, the dimensions of the electrodes used, the configuration of the grounding system, the shape of the current and the frequency that flows, the chemical content of the soil. Soil treatment is one way to change the chemical composition of the soil by adding additives. In this study, an additive in the form of coconut shell charcoal was used and was given a high-frequency current injection with a range of 50-50kHz on plate type electrodes in vertical and horizontal planting configurations. The method used in this study is to use the 3 point method. The test results showed that the addition of coconut shell charcoal and the injection of high-frequency current affected the value of the real grounding impedance (resistance) in each planting configuration. The smallest real impedance value (resistance) obtained is when the grounding electrode is planted in a horizontal position and a 50kHz current is injected. When the electrode is injected a high frequency current indicates that the electrode is inductive while at the time the low frequency current is injected it is capacitive. Overall the value of real impedance (resistance) that can be reduced in each planting configuration is 20.98% to 49.79%.Keywords : Charcoal, Grounding, Impedance, Coconut Shell, Frequency
PENGARUH PENAMBAHAN BERKAS BINTANG TERHADAP ANTENA MIKROSTRIP ARRAY 2X2 PATCH BINTANG PADA FREKUENSI ISM BAND 2,4 GHZ MENGGUNAKAN APLIKASI CST STUDIO SUITE 2018 Kevin Icxaudy Hamonangan Sitinjak; Muhammad Fauzan Edy Purnomo
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Abstract

ISM band is a frequency band used for industrial, scientific, and medical needs. This ribbon is used without the need for a license. One of the devices that use this band is an antenna, the antenna serves to emit electromagnetic waves into free space. To get a wide coverage area, an antenna with a high gain is needed. Based on these needs, in this study it will be proposed to use the star patch method with a 2x2 array and the star file will be added. This star patch antenna will be used as an antenna that works at a frequency of 2.4 GHz. The 2x2 array method and the addition of a star beam are useful for increasing gain and improving the return loss and VSWR of the antenna. The test results show that the more elements and star beams, the higher the gain and the better the return loss and VSWR values.Keywords: antenna, array 2x2, star, ism, gain, return loss, vswr
DESAIN DAN IMPLEMENTASI ALGORITMA PEMBACAAN SENSOR KAPASITIF PADA SISTEM MONITORING GREENHOUSE DAN FERTIGASI BUAH MELON Mochamad Darius Evan Hananta; Eka Maulana; Akhmad Zainuri
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Abstract

Crop failure due to high rainfall is a threat to farmers. One solution to overcome this problem is to cultivate melons in a greenhouse. However, this can result in a significant increase in temperature so that the soil in the planting medium dries quickly. In this study, an algorithm was implemented to control the readings of dissolved water content in the planting medium by non-invasive capacitive sensor pieces which were carried out alternately using a decoder, as well as reducing reading noise using the Kalman Filter algorithm. The algorithms designed include reading sensor data every 50 ms, changing each capacitive sensor plate so that it can act as an excitation source, sensing element, and shield in turn, reducing noise reading from the sensor, sending sensor reading data from Arduino Nano to ESP32, receiving and parsing the data according to the data sent by the Arduino Nano, and turning on or off the fertigation system according to the data obtained. Based on the test results showed that the water content read on the capacitive sensor without planting media
RANCANG BANGUN RANGKAIAN PENGONDISI SINYAL SENSOR KAPASITIF PADA SISTEM MONITORING GREENHOUSE DAN FERTIGASI BUAH MELON Raihan Muhammad Gibran; Eka Maulana; Akhmad Zainuri
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Abstract

Melon is a widely cultivated fruit because it only takes 60 days until harvest time. One of the biggest threats to melon farmers is crop failure. Melon cultivation in a greenhouse is one solution to overcome this problem. One of the parameters monitored is the water content in the planting media. A non-invasive capacitive sensor is used to read the soil moisture value evenly. This capacitive sensor works like a capacitor, with the planting media as a dielectric material that is placed between the electrode plates. The sensor requires a signal conditioning circuit to convert the capacitance value of the sensor into a DC voltage so that it can be read by the ADC. this circuit has specifications such as: the ability to generate an output in the form of DC voltage, ability to generate different output value for the different condition of planting media, and ability to be read by microcontroller's ADC. The test is carried out on the Signal Conditioning Circuit which consists of: De Sauty bridge circuit, full-wave rectifier circuit, and operational amplifier circuit. The results s
PENERAPAN IMAGE PROCESSING PADA ALAT PEMANEN ROYAL JELLY OTOMATIS Fatchur Rozi Al Fitrah; Panca Mudjirahardjo; Eka Maulana
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Royal Jelly is a nutritious food that has many benefits, thus increasing the demand for the product. Royal Jelly can be produced by bees 121 times/year, but the large amount of production is not matched by a good harvesting system, namely using the conventional method by prying out the queen cup. If the harvesting process is carried out in large quantities, farmers will have difficulties and have an impact on product quality, when the harvest time of royal jelly is getting longer, the quality of royal jelly will decrease, especially in the aspect of viscosity. Then an automatic royal jelly harvester is needed to speed up the harvesting process. In an automatic royal jelly harvester, a system that can detect and measure the distance of royal jelly is needed, namely by image processing using a camera. The results of the RGB segmentation test were obtained with a binary image thresholding value with a lower limit (220,220,220) and an upper limit (255,255,255) while the HSV method obtained a binary image thresholding value with a lower limit (0,0,240) and an upper limit (179,80,255). The detection rate of the HSV color space method gets 100% accuracy compared to the RGB color space method which gets 60%. In addition, measuring the distance of Royal Jelly with millimeters using a camera can be done using the Euclidean distance method and the percentage of error is relatively small (3%) from the actual distance.Keywords: Royal Jelly, Image Processing, Eclidean Distance
SISTEM MONITORING BERAT DAN SUKROSA PADA ROYAL JELLY BERBASIS INTERNET OF THINGS Monifa Arini; Panca Mudjirahardjo; Eka Maulana
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Abstract

Royal jelly is one type of bee product that has many benefits and high nutritional content. The characteristics of royal jelly are classified as easily damaged if the queen cup is left open for a long time, so the quality of the royal jelly produced is not good. Poor quality will affect the important ingredients in royal jelly which can reduce the amount of royal jelly production. Unfortunately, the harvesting tools used today do not have measurements and monitoring of the composition of weight and royal jelly that support it. Therefore, the purpose of this research is to design a monitoring system for weight and sucrose in royal jelly based on the Internet of Things. The system is equipped with accurate measurement of sucrose content, measurement of harvest weight, and real-time data transmission that is stored through the database. Measurement of sucrose level monitoring was carried out using the TCS-230 sensor resulting in an error percentage of 3.002% and was in accordance with ISO standards. In addition, the results of the measurement of the first harvest weight of 26.2 grams then increased until the fifth harvest, which was 113.2 grams. With Internet of Thingsbased monitoring, the value of sucrose content, weight, time, and date that can be seen through the android application aims to make it easier for users to view incoming realtime data and automatically recap data.Keywords: Royal Jelly, Sucrose, Weight, Internet of Things.
SISTEM BACK UP DAYA DAN PENGATURAN KECEPATAN KONVEYOR UNTUK ALAT PEMANEN ROYAL JELLY OTOMATIS Vira Zafarin; Panca Mudjirahardjo; Eka Maulana
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Abstract

Royal Jelly is a product produced by honey bees and has many benefits, thus increasing the demand for the product. This high demand is considered not effective because the harvesting system is is carried out using conventional method, by removing one queen cup at a time. If the harvesting process is carried out in large quantities, farmers will have difficulties and this will impact on product quality, because the amount of royal jelly increases within 72 hours, but begins to decrease after 96 hours of larva removal. Therefore, an automatic royal jelly harvester is needed. In this research, the process of designing back up power and setting the conveyor speed. The results of this study, it can be seen that the system is capable of for 30 minutes using an accumulator, when the power goes out. While on the conveyor speed system, the conveyor is able to run at the desired speed according to the in the specified distance range, so that the queen cup object can stop at a position that can be reached by the royal jelly suction for the harvesting process.Keywords: Royal Jelly, Back Up Power System, Duty Cycle, Conveyor
DESAIN KONTROL KECEPATAN MOTOR BRUSHLESS DC MENGGUNAKAN METODE PID-FUZZY Lalu Iradat Aryadwinata; Bambang Siswojo; Lunde Ardhenta
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Abstract

The air distribution process is still using the manual method, namely by using human power to activate and deactivate the distribution pump and use the average demand graph as a reference. This results in irregular air distribution. Therefore we need a control system on the distribution of the pump that can work automatically to maintain air distribution according to the level of customer needs. One of the most important parts of a water pump is the drive in the form of an electric motor. One type of electric motor that can be used is a BLDC motor. The BLDC (Brushless Direct Current) motor is a development of the DC motor, where in the commutation process it uses electronic commutation so that there are no mechanical problems, and interactions. The use of a BLDC motor requires a control system to regulate its speed. One of the methods that can be used is using a PID controller. PID can improve motor response by producing a fast and smooth response and small overshoot, but the PID controller cannot be applied to non-linear loads, while BLDC motors have a multi-variable, non-linear system, and can easily be affected by parameter variations and disturbances. If this controller is still applied then the system response to stable conditions will be quite long and cause the motor to have poor performance. In this study, a controller was developed by combining PID controller with Fuzzy Logic Control. Fuzzy logic control produces additional parameters for each PID parameter controller. Variations of the FLC output make thecontroller implicitly adjustable. It is hoped that in this study, a response system will be obtained that has a high steady state level with a fast settling time.Keywords: BLDC Motor, PID Controller, Fuzzy Logic Control, Steady State
PENGARUH BOMBARDIR PARTIKEL BERMUATAN TERHADAP SIFAT FISIK PLAT ALUMINIUM DENGAN DIELEKTRIK GAS TETRAFLUOROETANA DALAM MEDAN TINGGI DC NON-HOMOGEN Ibnu Sabilli; Mochammad Dhofir; Mahfudz Shidiq
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
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Abstract

In this study, positive ions were generated from the gas ionization process of tetrafluoroethane (R134a) using a high electric field. The high field is generated at the plate needle electrode array in a gas environment of tetrafluoroethane. The highest field occurs at the needle tip and the ionization process occurs around the needle tip. Each ionization of tetrafluoroethane gas produces one electron and one positive ion. To bombard the plate electrode, positive ions must move from the tip of the needle to the plate electrode. The needle electrode must be supplied with DC voltage of positive polarity while the plate electrode is grounded. The results showed that the positive ion bombardier effect on the physical charactertistic of the aluminum plate depended on the value of the kinetic energy of the ions when it hits the surface of the plate. The longer the free path of the positive ion, the greater the speed and kinetic energy of the ion when it strikes the plate electrode.Keywords – aluminum plate, ion bombardment, positive ion, tetraflouroethane

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