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All Journal Elkom: Jurnal Elektronika dan Komputer JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Elektrika Jurnal Teori dan Aplikasi Fisika
Bayu Wahyudi
Akademi Teknik Elektro Medik Semarang
Astronomy Computer Science & IT Education Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Physics

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 1 
Comparative Test of the Effect of X-Ray Tube Current Analysis and Exposure Time on CR (Computed Radiography) Image Quality Diah Rahayu Ningtias; Bayu Wahyudi; Imam Tri Harsoyo
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol 6, No 1 (2022): Issues July 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v6i1.7334

Abstract

The medical image system in the form of digital examination results using Computed Radiography (CR) needs to be analyzed, this can be done by knowing the quality of the image contrast resolution and the quality of its spatial resolution. This study conducted a comparative test between two methods of analyzing contrast resolution of medical images. Image quality on Computed Radiography can be determined using contrast resolution analysis, namely calculating the CNR value and PSNR value. The study was carried out using a phantom to represent the density of the bone. The voltages used are 50 kV, 60 kV, 70 kV and 81 kV, respectively. With each voltage, the tube current and exposure time (mAs) were varied 1.6 mAs, 2 mAs, 4 mAs, 8 mAs, 16 mAs, and 32 mAs. The higher the CNR value obtained, the better the image quality. While the PSNR value to get the optimal quality of medical image contrast, the current-time variation of 4 mAs and 16 mAs must be used. Due to the time-current variation, a high PSNR value is obtained, which indicates that the noise of the medical image is getting smaller so that a good contrast quality of the medical image is obtained. Both of these methods can be used to test the suitability of X-ray device, especially for quality control of medical images
PERANCANGAN PEMANTAUAN SUHU CLIMATIC CHAMBER BERBASIS ARDUINO DILENGKAPI HEATER DAN PELTIER Muhammad Ulin Nuha ABA; Bayu Wahyudi; Mohamad Sofie
Elkom : Jurnal Elektronika dan Komputer Vol 14 No 1 (2021): Juli: Jurnal Elektronika dan Komputer
Publisher : STEKOM PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51903/elkom.v14i1.334

Abstract

The climatic chamber is a calibration medium for the thermohygrometer. This simple climatic chamber was built using the Arduino uno, DHT22 sensor, heater, and peltier. The climatic chamber was designed and manufactured well and cheaply. Climatic chamber testing of the design results is carried out to determine the success rate of the tool. Tests are carried out using the Madgetech data logger tool through monitoring or monitoring of temperature within a certain period of time. The results of temperature monitoring at two observed values, namely temperatures of 250C to 300C and temperatures of 300C to 350C, showed good results with the corresponding rhythm of temperature increase and temperature decrease. It's just that the decrease in temperature still takes longer than the increase in temperature. This shows that the heater can be said to be working optimally and the peltier is not fully working. So it is necessary to do further studies related to the peltier for the climatic chamber both in terms of number and characteristics.
Rancang Bangun Mobile Infant Warmer dengan Menggunakan Pemanas DC Bayu Wahyudi; Mohamad Miftahudin; Iqbal Firdaus
Jurnal Teori dan Aplikasi Fisika Vol. 7 No. 2 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i2.215

Abstract

Rancang Bangun Water Seal Drainage (WSD) Khusus Thorax Diah Rahayu Ningtias; Bayu Wahyudi; Iqbal Firdaus
Jurnal Teori dan Aplikasi Fisika Vol. 8 No. 2 (2020): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v8i2.254

Abstract

A Water Seal Drainage (WSD) design was made to remove air and fluid from the pleural cavity in the thorax (lung cavity) using a connecting tube or chest tube to maintain the negative pressure of the cavity. Under normal circumstances, the pleural cavity has negative pressure and only a little pleural fluid is filled. Suction pumps have a high pressure with a pressure range of -10 kPa to -80 kPa. The pressure is large enough so that it is not suitable for thorax because it can cause damage to internal organs due to high pressure. WSD specifically for thorax has a low pressure which is below -5 kPa / -40 mmHg. This WSD is equipped with a hand switch, water level and automatic Arduino Uno based exhaust system which has a pressure below -26.6 kPa / -20 cmHg to suction and pressure below -3.4 kPa / -2.6 cmHg to remove liquid from the bottle . The hand switch itself functions as a manual control to make it easier for the user, while the level sensor functions as a safety level for fluid levels in the tool and also an automatic fluid disposal system so that it is more efficient.
Rancang Bangun Modul Kontrol Alat Terapi Batu Ginjal (ESWL) Dengan Mikrokontroler AT-Mega16 Berdasarkan Sistem Pernapasan Manusia Bayu Wahyudi; Kusuma Adi Cipta; Muhammad Ulin Nuha ABA
Elektrika Vol. 12 No. 2 (2020): Oktober 2020
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v12i2.2267

Abstract

Extracorporeal shockwave lithotripsy (ESWL) is the most cost effective treatment option in cases of kidney stones. ESWL uses an energy source called lithotriptor to produce a shock wave that is high in electromagnetic energy in pulses to break down rocks into fine grains of sand and come out naturally with urine. In this study the authors modified the control of the ESWL unit by adding an automatic wave shooting system based on respiration from therapeutic patients using the MPXV7002DP sensor and the ATmega16 microcontroller and applying the 16x2 LCD as a display.The maximum reading capability of this module is 9000 times the active relay, which means that ESWL can shoot as many as 9000 times automatically according to human breathing. This automatic kidney stone therapy module can shoot as many as 3 waves in one breath. Has created a number of inspiration counters and the number of wave shots that ESWL has fired into kidney stone therapy patients.
Analisis Data Berat Badan Dan Panjang Bayi Dengan Alat Ukur Panjang Dan Berat Badan Bayi Berbasi Arduino Bayu Wahyudi; Deny Julian Adella; Muhammad Ulin Nuha ABA
Elektrika Vol. 13 No. 2 (2021): Oktober 2021
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v13i2.3161

Abstract

Monitoring the nutritional status of infants at this time is mostly still using the manual method, by looking at anthropomeric standard books so that nutritional monitoring takes longer and is less practical. Babies need nutritional status based on age, weight, length of the baby (baby's height), and sex of the baby. To find out the nutritional condition of the baby, the author wants to develop a measurement tool for weight and length of the baby with the output data in Microsoft Excel. This study aims to design a baby's weight and length measurement tools with data output at Microsoft Excel and perform a function test. The process of detection in infants using ultrasonic sensors that serves to determine the height or length of the baby's body and load cell sensors to determine the baby's weight, then the LCD (Liquid Crystal Display) which displays the results of ultrasonic sensors and load cell sensors and Arduino Uno. The results of this study are an infant weight and height measurement tool with an arduino uno-based anthropometric index method with 2 ultrasonic sensors as height and length counters, and 1 load cell sensor as a weight calculator for infants that will later be displayed on the LCD screen.
Co-Authors Deny Julian Adella Diah Rahayu Ningtias Imam Tri Harsoyo Iqbal Firdaus Kusuma Adi Cipta Mohamad Miftahudin Mohamad Sofie Muhammad Ulin Nuha ABA Muhammad Ulin Nuha ABA Muhammad Ulin Nuha ABA