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<![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.]]>
<![CDATA[WIRELESS SENSOR SYSTEM UNTUK PEMANTAUAN KADAR GAS AMONIA (NH3) MENGGUNAKAN ALGORITMA BERBASIS ATURAN ]]>
<![CDATA[Arlien Siswanti]]>;
<![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[Ammonia gas (NH3) is one of gas that causes air pollution. Ammonia gas (NH3) a colorless and has a very pungent is very dangerous if too much for by humans perhaps even cause of death. Wireless sensors system with the telemetry system can be solution measurements made from a distance. The study is done by making a wireless sensors system for monitoring levels ammonia gas (NH3) algorithm rule based as a limit exposure to the submission of the data use the network wifi. This system allows monitoring, recording levels of gas and early warning system ammonia gas from a distance. A system that created composed from sensors MQ-135 connected with mikrokontroler ATmega8535. The sensor reading is converted from analog to digital (ADC). Microrontroller ATmega8535 has USART feature (Universal Synchronous and Ansynchronous Serial Receiver dan Transmitter) as a serial communication mode. A communication system data using protocol RS232 to connect data serial communication to personal computer (PC). The results of the data acquisition sent to the station monitoring to technique telemetry use the network wifi that can be accessed in web browser on pc and to display in real-time presented in the form of table and saved to in a database. Testing system done by sending a number of data from field will be accepted by the monitoring stations. Several variables resulting from monitoring system that is date, time, temperature, moisture, levels of ammonia gas and health effects as a rule about the exposure ammonia gas. Result of the comparison between the data sent and received data has errors by 0% so that it can be ascertained no data is lost or gained. This suggests that the system going well.Keywords: Ammonia gas, MQ-135 sensor, Ruled base algorithm, Database, WiFi network. ]]>
<![CDATA[PENGUKURAN LINIERITAS TINGKAT KEABUAN (GRAY LEVEL) CITRA FLUOROSKOPI MENGGUNAKAN METODE PENGOLAHAN CITRA DIGITAL ]]>
<![CDATA[Fitri Mahardika Sari]]>;
<![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[Measurement on the grey level on a plane fluoroscopy has done using processing image digital methods. The research aims to create computer software that is used to calculate the value of the image of grey level to test linierity gray level image fluoroscopy. The research can be used to help improve the quality of medical services as well as help in establishing the diagnosis.The research is done with exposed the panthom leeds test object gray scale laid between an x-ray source and image intensifier. This exposed done with variation voltage tube between 40 kvp to 63 kvp. Phantom which exposed are generates an image in the form of DICOM, then transferred to analyzed gray level using a computer. On the stage analysis made a computer program by using matlab consisting of the subroutine is: load citra DICOM, then taking an area ROI in each step, in regions ROI grey value in the average level of the voltage lowest 40 kvp until with voltage kvp, 63 its average value at one voltage a tube made a graph linierity between grey level step, with the level of then determine the equation linieritas and value of the coefficients correlation.The results obtained in research shows all variation in voltage tube having tested linierity high with indicated value of a coefficient correlation approaching +1 panthom used against image. The lowest in voltage to the voltage tests indicating the highest level linierity good increasingly. In voltage lowest voltage tube 40 kvp obtained linear equations y= 3.078x-3.461 with a coefficient correlation 0,8624 and in voltage highest earned 64 kvp in a linear equation y= 5.480x+10.431 with a coefficient correlation 0,9968. These results also indicated that gray level as part of software based matlab can be used to know the value of an image linierityf luoroskopi.Keywords: gray level, digital images, fluoroscopy image, DICOM, linierity]]>
<![CDATA[SISTEM TELEMETRI PEMANTAUAN SUHU LINGKUNGAN MENGGUNAKAN MIKROKONTROLER DAN JARINGAN WIFI ]]>
<![CDATA[Munarso Munarso]]>;
<![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[Research has been done to make a systems of sensors and telemetry systems for data acquisition the ambient temperature based microcontroller and used Wi-Fi networks. This research also aims to make a computer software telemetry systems that can perform real-time data acquisition ambient temperature. Telemetry monitoring the ambient temperature is very important because it can take measurements remotely and in a place that is not affordable. Research has been carried out by designing, manufacturing, and testing telemetry systems which consists of two main parts: the transmitter and receiver. At the transmitter consist of components LM35, ATmega8535 microcontroller, and Wi-Fi radio. While at the receiver consists of a Wi-Fi receiver and computer. Based on the results of the characterization of the sensors and data acquisition, the dependent between the data obtained by the equation ADC and temperature standard thermometer y = 1.0027x + 0.2801. At the receiver, systems can work in reading data, display data in graphs and store data in the MySQL database systems. From the results of the ambient temperature telemetry systems calibration against standard measuring instrument obtained correlation value of R = 0.9988. So the correlation value obtained from this it can be concluded that the telemetry systems as a whole is functioning properly in the ambient temperature measurement data acquisition. Keywords: temperature, telemetry, microcontroller, temperature sensor LM35, WIZ110SR]]>
