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<![CDATA[PENGUKURAN KUALITAS CITRA DIGITAL COMPUTED RADIOGRAPHY MENGGUNAKAN PROGRAM PENGOLAH CITRA ]]>
<![CDATA[Ningtias, D. R.]]>;
<![CDATA[Suryono, S.]]>;
<![CDATA[Susilo, S.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 12, No 2 (2016): July 2016 ]]>
Publisher : <![CDATA[Physics Department, Faculty of Mathematics and Natural Sciences, Semarang State University ]]>
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DOI: 10.15294/jpfi.v12i2.5950
<![CDATA[Penelitian yang telah dilakukan adalah pembuatan dan penghitungan kualitas citra digital menggunakan program Modulation Transfer Function (MTF) pada sistem Computed Radiography (CR) untuk kegiatan Quality Control (QC). MTF dapat digunakan untuk menganalisis resolusi spasial citra digital secara akurat. Pada penelitian ini menggunakan phantom yang terbuat dari tembaga berukuran 15x15 cm dengan ketebalan 1 mm. Phantom dieksposi dengan variasi tegangan 50 kV, 60 kV, 70 kV dan 81 kV dan masing-masing dilakukan variasi arus. Data yang diperoleh berupa file citra digital radiografi format DICOM yang kemudian dilakukan analisis kualitas citranya menggunakan PC diluar sistem CR dengan metode MTF. Metode ini sangat efisien dalam melakukan QC resolusi spasial secara kuantitatif sehingga dapat digunakan untuk menilai kualitas pesawat CR. Hasil pengukuran menunjukkan bahwa semakin tinggi tegangan yang digunakan, maka kualitas citra semakin baik dengan arus optimal pada rentang 4-8 mAs dengan rata-rata nilai resolusi spasial 7,26 lp/mm.The research was analyzing of digital image quality by using Modulation Transfer Function (MTF) on Computed Radiography (CR) system for Quality Control (QC). MTF can be used for analyzing digital image spatial resolution accurately. The research used phantom that made of 15x15 cm2 copper and 1 mm thickness. The phantom was expounded with voltage variations by 50 kV, 60 kV, 70 kV dan 81 kV and each of them have been taken by variations of the current. The the image quality of data obtained in the form of radiography digital image files with DICOM format were then analyzed using PC out of CR system with methode of MTF. This methode is really efficient for QC spatial resolution quantitatively and so it can be used for assesing the quality of CR. The measurement results showed that the higher the voltage, the better image quality with optimal current was on the range between 4-8 mAs with the average value of MTF 7,26 lp/mm.]]>
<![CDATA[PENGUKURAN KUALITAS CITRA DIGITAL COMPUTED RADIOGRAPHY MENGGUNAKAN PROGRAM PENGOLAH CITRA ]]>
<![CDATA[Ningtias, D. R.]]>;
<![CDATA[Suryono, S.]]>;
<![CDATA[Susilo, S.]]>
<![CDATA[ Jurnal Pendidikan Fisika Indonesia Vol 12, No 2 (2016) ]]>
Publisher : <![CDATA[Department of Physics, Faculty of Mathematics and Natural Sciences ]]>
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DOI: 10.15294/jpfi.v12i2.5950
<![CDATA[Penelitian yang telah dilakukan adalah pembuatan dan penghitungan kualitas citra digital menggunakan program Modulation Transfer Function (MTF) pada sistem Computed Radiography (CR) untuk kegiatan Quality Control (QC). MTF dapat digunakan untuk menganalisis resolusi spasial citra digital secara akurat. Pada penelitian ini menggunakan phantom yang terbuat dari tembaga berukuran 15x15 cm dengan ketebalan 1 mm. Phantom dieksposi dengan variasi tegangan 50 kV, 60 kV, 70 kV dan 81 kV dan masing-masing dilakukan variasi arus. Data yang diperoleh berupa file citra digital radiografi format DICOM yang kemudian dilakukan analisis kualitas citranya menggunakan PC diluar sistem CR dengan metode MTF. Metode ini sangat efisien dalam melakukan QC resolusi spasial secara kuantitatif sehingga dapat digunakan untuk menilai kualitas pesawat CR. Hasil pengukuran menunjukkan bahwa semakin tinggi tegangan yang digunakan, maka kualitas citra semakin baik dengan arus optimal pada rentang 4-8 mAs dengan rata-rata nilai resolusi spasial 7,26 lp/mm.The research was analyzing of digital image quality by using Modulation Transfer Function (MTF) on Computed Radiography (CR) system for Quality Control (QC). MTF can be used for analyzing digital image spatial resolution accurately. The research used phantom that made of 15x15 cm2 copper and 1 mm thickness. The phantom was expounded with voltage variations by 50 kV, 60 kV, 70 kV dan 81 kV and each of them have been taken by variations of the current. The the image quality of data obtained in the form of radiography digital image files with DICOM format were then analyzed using PC out of CR system with methode of MTF. This methode is really efficient for QC spatial resolution quantitatively and so it can be used for assesing the quality of CR. The measurement results showed that the higher the voltage, the better image quality with optimal current was on the range between 4-8 mAs with the average value of MTF 7,26 lp/mm.]]>
<![CDATA[PRAJAPATI MANDALA DI MINAHASA - Kosmologi dalam Arsitektur ]]>
<![CDATA[Marrendra, Ida Dewa]]>;
<![CDATA[Suryono, S.]]>
<![CDATA[ Jurnal Arsitektur DASENG Vol 1, No 2 (2012): Edisi Khusus TA. Buku I KONTEKSTUAL. Volume 1 No.2 November 2012 ]]>
Publisher : <![CDATA[PS S1 Arsitektur. Jurusan Arsitektur, Fakultas Teknik Universitas Sam Ratulangi Manado ]]>
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<![CDATA[PRAJAPATI MANDALA DI MINAHASAÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (KOSMOLOGO ARSITEKTUR) Ida Dewa Marrendra[1] Ir. Suryono[2] ABSTRAK Di Provinsi Sulawesi utara khususnya di Manado, Bitung, Tomohon, Minahasa Utara dan Minahasa belum terdapat krematorium sehingga umat hindu harus melaksanakan upacara Ngaben di kampung halamannya padahal mereka sudah lama menetap dan menjadi warga disitu. Beberapa hal yang juga sering terjadi ketika dilaksanakannya upacara kedukaan seperti upacara tidak berjalan lancar karena lahan rumah keluarga sebagai rumah duka yang terbatas dan sempit sehingga terjadi kemacetan karena sering pemakaian jalan umum untuk kegiatan upacara duka. Untuk itu dirancang krematorium yang dapat mewadahi kebutuhan masyarakat tersebut berupa Prajapati Mandala. Proyek tugas akhir ini di desain dengan tema Kosmologi Arsitektur sebagai wujud dari krematorium yang berkaitan dengan filosofi Hindu. Berbagai proses dilakukan untuk memaksimalkan desain krematorium ini seperti pencarian data dan survey lokasi serta implementasi arsitektural yang dituang dalam produk gambar kerja dengan menggunakan CAD. Berdasarkan proses di atas maka dihasilkan bangunan krematorium yang lebih kreatif baik dari pembagian fungsi, tata bangunan serta fasade bangunan. Karena itu bangunan krematorium ini memiliki ciri khas Hindu yang unik serta menarik bagi pengguna maupun pengunjungnya. Kata Kunci : Krematorium, Prajapati Mandala, Ngaben, Kedukaan. [1] Mahasiswa PS 1 Arsitektur UNSRAT [2] Staf Dosen Pengajar Arsitektur UNSRAT]]>
<![CDATA[RANCANG BANGUN SISTEM AKUSISI DATA SENSOR MAGNETIK EFEK HALL UGN3503 MENGGUNAKAN KOMPUTER ]]>
<![CDATA[Hernita Kusuma Wardani]]>;
<![CDATA[Suryono Suryono]]>
<![CDATA[ Youngster Physics Journal Vol 1, No 1 (2012): Youngster Physics Journal Oktober 2012 ]]>
Publisher : <![CDATA[Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro ]]>
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<![CDATA[This research is conducted a construction of data acqusition system of magnetic Hall effect sensors UGN3503 using computer. The system made consists of magnetic Hall effect sensors UGN3503, deferential amplifier, and mikrokontroler ATmega8535 minimum system. Magnetic Hall effect sensors UGN3503 is a magnetic field detecting sensors. The output voltage when there is no magnetic field is half of VCC. Therefore, the diferential amplifier is needed. Then, the coercing result is in the from of analogue signal. This analougue signal will be converted by ADC internal ATmega8535 into digital data in 10 bit format. Data is transmitted by the USART that is series communication mode on ATmega8535 through RS-232 interface. The result of the data can be in the form of chart that can be shown on computer using Borland Delphi 7.0 and can be saved into Microsoft Excel. This system has been realized and can perform the final result in form chart and also can be saved. The result of the tool and sensor characteristic test with linear correlation coefficient value R = 0.995 to standard tool. Keyword: magnetic Hall effect sensors UGN3503, deferential amplifier, mikrokontroler ATmega8535 minimum system, ADC, USART]]>
<![CDATA[RANCANG BANGUN SISTEM TELEMETRI UNTUK MONITORING GAS KARBON MONOKSIDA MENGGUNAKAN JARINGAN WIFI ]]>
<![CDATA[Arifin Budi Putro]]>;
<![CDATA[Suryono Suryono]]>
<![CDATA[ Youngster Physics Journal Vol 5, No 2 (2016): Youngster Physics Journal April 2016 ]]>
Publisher : <![CDATA[Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro ]]>
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<![CDATA[Development of science and technology is growing rapidly, especially in the field of electronics. Many human activities and industrial activities that produce pollutant gases such as CO disturb the environment. It needs a CO gas concentration monitoring tool for controlling the gas in the environment. The tool is made to measure the concentration of CO gas from long distance so that the monitoring can be done safely by using telemetry. The telemetry system is built by using minimum system microcontroller ATmega8535 to convert analog to digital data from the sensor. For the measurement of the CO gas concentration using MQ-7 sensor which utilizes USART as a serial data communication and WiFi as a wireless data transmission. The result of reading ADC value from MQ-7 sensor is converted into concentration value. The data that has been acquired by a computer then stored in a database and transmitted through WiFi network. Testing of the data transmission system is done by sending a number of data from transmitter to receiver. The comparison of data that is sent and received has an error rate of 0%. Data viewer interface is made using HTML and PHP by displaying several variables such as: temperature, humidity and CO gas concentration. Web browser is used to access the database of the transmitter by entering the IP address of the PC on the transmitter. This CO gas measurement tool helps the efficiency of time in the measurement and be safe in monitoring because it is done from long distance.Keywords: Telemetry, MQ-7 sensor, WiFi, CO, database.]]>
<![CDATA[SISTEM PENGUKURAN KEKASARAN PERMUKAAN DINDING SUMUR BETON MENGGUNAKAN ULTRASONIC RANGING DENGAN MEDIA PENYIMPANAN DATA LOGGER ]]>
<![CDATA[Vifaldi Agti]]>;
<![CDATA[Suryono Suryono]]>
<![CDATA[ Youngster Physics Journal Vol 5, No 4 (2016): Youngster Physics Journal Oktober 2016 ]]>
Publisher : <![CDATA[Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro ]]>
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<![CDATA[Research of the application of ultrasonics wave for measurements of level of surface roughness of wall of the well concrete have been done. This purpose of research is create sensor system and data acquisition ultrasonic ranging for measure surface roughness of wall of the well and create data logger system which can store measurement results. This method included in non destructive test because It’s used of secure wave spectrum region and nocontact measurement system. In this research, ultrasonic pulse generator using microcontroller ATSAM3X8E and the ultrasonic transducer is work on frequency of 40kHz. The transducer emits ultrasonic pulses to the object via the transmitter and receive back the wave reflection on the receiver. ultrasonic waves are transmitted through air media experience attenuation and reflected towards the object until received by the receiver. The object used as the measurement of roughness is wall of the well concrete, reasons for choosing this object is to minimize attenuation, thus increasing the reflection of ultrasonic waves. In the method of time-of-flight measurement is done by rotating transducer for scanning object using the DC motor. The measurement results is stored in a data logger using the SD Card. To get the surface roughness profile, the distance data obtained is calculated using standard deviation equation. Then obtained a deviation of the roughness profile, the lowest value is 0.255 cm, the highest score is 0.730 cm, and the average value is 0,495 cm.]]>
<![CDATA[SISTEM TELEMETRI PEMANTAU GAS KARBON DIOKSIDA (CO2) MENGGUNAKAN JARINGAN WIFI ]]>
<![CDATA[Muhammad Izzuddin Shofar]]>;
<![CDATA[Suryono Suryono]]>
<![CDATA[ Youngster Physics Journal Vol 3, No 3 (2014): Youngster Physics Journal Juli 2014 ]]>
Publisher : <![CDATA[Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro ]]>
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<![CDATA[This research has developed telemetry system for CO2 gas monitoring using MG811 gas sensor with Wifi network system. Telemetry sistem is very important because CO2 is lethal gas for human. This system allows for monitoring, data acquisition and early warning from somewhere far away from the gas source. This data acquisition system using MG811 gas sensor, ATmega8535 microcontroller and I2C communication protocol for data transfer between sensor and microcontroller. Data from microcontroller is sent to Wiz6000 using serial communication protocol. Wiz6000 is a serial to wifi module. Data from wiz6000 then read by computer that connected to Wifi network belong to wiz6000 with IP and port that suited with the configuration.CO2 gas sensor is being realized with reading the sensor value via I2C communication protocol with MG811 and ATmega8535 miconcontroller. After calibration, the linier coefficeient R = 0,997 toward standar CO2 meter. Data acquisition CO2 concentration with MG811 is sent via telemetry system using Wifi network that can be accessed using computer program. The program then will show the data real-time and showed in a table, chart and save them to MySQL database. This telemetry monitoring sistem also a early warning system that give a warning when the CO2 concentration increased above the safety standard.Keyword: CO2, hazardous gases, sensor, data acquisition, telemetry]]>
<![CDATA[UJI IMAGE UNIFORMITY PERANGKAT COMPUTED RADIOGRAPHY DENGAN METODE PENGOLAHAN CITRA DIGITAL ]]>
<![CDATA[Arnefia Mei Yusnida]]>;
<![CDATA[Suryono Suryono]]>
<![CDATA[ Youngster Physics Journal Vol 3, No 4 (2014): Youngster Physics Journal Oktober 2014 ]]>
Publisher : <![CDATA[Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro ]]>
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<![CDATA[Image uniformity on Computed Radiography (CR) indicates the ability of photostimulable phosphor that contained in the imaging plate (IP) in generating value gray level at all points on the same exposure treatment. Image uniformity determine the image quality on radiological examination to be able to obtain accurate diagnostic information. Determination of image uniformity can be achieved by digital image processing. In this study, image uniformity tests performed using imaging plate size 35 x 35 with ID plate 9103073519. Imaging plate was exposured at 80 kV tube voltage and currents and the time variation of 40 mAs, 50 mAs and 60 mAs. Furthermore searched pixel values in the region of interest (ROI) which has been determined. Data from the test image is processed with Matlab software. The average deviation of each ROI pixel generated by the test images ranged between 0.17% -1.03% of the overall average. This value is still within the tolerance limit of 10% set by the AAPM, so the tapes were tested said to be unsuitable for use. Keywords: image uniformity, imaging plate, digital image, region of interest, deviation]]>
<![CDATA[Rancang bangun sistem pengaman kebocoran gas LPG (Liquefied Petroleum Gas) menggunakan mikrokontroler ]]>
<![CDATA[Reza Lutfi Ismai]]>;
<![CDATA[Jatmiko Endro Suseno]]>;
<![CDATA[Suryono Suryono]]>
<![CDATA[ Youngster Physics Journal Vol 6, No 4 (2017): Youngster Physics Journal Oktober 2017 ]]>
Publisher : <![CDATA[Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro ]]>
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<![CDATA[Design of LPG gas leakage safety system using microcontroller has been made in this research. The purpose of this research is to make LPG gas sensor circuit to detect LPG gas concentration and make automation systems for LPG gas leakage protection. LPG gas leakage protection system can be applied for the use of LPG gas safely. Component to detect LPG gas concentration use sensor MQ 5 which can gives resistance as the output value which can be converted into voltage through the voltage devider circuit so that it can be read by microcontroller with ADC feature. The LPG gas concentration and the output voltage on the sensor will be displayed via LCD 16x2. When LPG gas leak occurs the LPG gas concentration detected by sensor MQ 5 and then microcontroller will do automation such a modified regulator with a servo motor will close the LPG gas flow, buzzer will be active, the LED will be active and the relay will exhaust LPG gas that came out due to leakage. The automation has different treatments according to the concentration range of detected LPG gas. The range of gas concentration is ppm < 500, 500 < ppm <1000 and ppm >1000. Sensor circuit can detect gas concentration up to 33000 ppm. The test result on LPG gas leak safety automation system showed that the system can work in the event of leakage of LPG gas and effective to reduce LPG gas concentration up to safe zone.Keywords: microcontroller, sensor, LPG gas, gas exhaust, automation system, exhaust system]]>
<![CDATA[RANCANG BANGUN SISTEMMONITORING KADAR SALINITAS AIR MENGGUNAKAN WIRELESS SENSOR SYSTEMS (WSS) ]]>
<![CDATA[Febriana Tirta Kirana]]>;
<![CDATA[Suryono Suryono]]>
<![CDATA[ Youngster Physics Journal Vol 5, No 4 (2016): Youngster Physics Journal Oktober 2016 ]]>
Publisher : <![CDATA[Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro ]]>
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<![CDATA[Real time monitoring in designated location using remote observation has become one topic chosen to be efficiently developed because it can be observed and anticipated earlier when the water quality is decreasing. One of the indicators of water quality is salinity, which is being developed through this study by using remote measurement system (telemetry) using Wi-Fi network. To determine the change of the indicator, a salinity sensor was used to determine the level of salinity. The sensors were mounted on a Remote Terminal Unit (RTU) attach on the object being observed. Those sensors produced analog signal so the signal should be converted into digital signal using Analog to Digital Converter (ADC) on ATSAM3X8E microcontroller. The digital data were then sent using serial communication from microcontroller to computer. The data were saved in the database and sent to Control Terminal Unit (CTU) using Wi-Fi network. A characterization was then conducted to a series of sensors produced from the previous phase using standard equipment to ADC value and a formula of sensor characteristic to ADC value was calculated which results in salinity equation value on y = 0,049 x – 35,306. The formula was then used in microcontroller program which results in coefficient of correlation on salinity sensor as R = 0,993 with 0,025 ppt error. From the test on communication system between database in Remote Terminal Unit (RTU) and Control Terminal Unit (CTU), there is no additional and missing data from data sent and data received, so it can be concluded that there is no error.]]>
