S. Suryono
Instrumentation And Electronic Laboratory, Physic Department, Faculty Of Science And Mathematic, Diponegoro University Of Semarang, Indonesia

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WIRELESS SENSOR SYSTEM UNTUK PEMANTAUAN KADAR GAS AMONIA (NH3) MENGGUNAKAN ALGORITMA BERBASIS ATURAN Arlien Siswanti; Suryono Suryono
Youngster Physics Journal Vol 5, No 2 (2016): Youngster Physics Journal April 2016
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

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. 
PENGUKURAN LINIERITAS TINGKAT KEABUAN (GRAY LEVEL) CITRA FLUOROSKOPI MENGGUNAKAN METODE PENGOLAHAN CITRA DIGITAL Fitri Mahardika Sari; Suryono Suryono
Youngster Physics Journal Vol 3, No 4 (2014): Youngster Physics Journal Oktober 2014
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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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
SISTEM TELEMETRI PEMANTAUAN SUHU LINGKUNGAN MENGGUNAKAN MIKROKONTROLER DAN JARINGAN WIFI Munarso Munarso; Suryono Suryono
Youngster Physics Journal Vol 3, No 3 (2014): Youngster Physics Journal Juli 2014
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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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
Rancang bangun sistem sensor nirkabel untuk memantau kecepatan dan arah aliran Erryk Yustisianto Putro; Suryono Suryono
Youngster Physics Journal Vol 6, No 1 (2017): Youngster Physics Journal Januari 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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On research wirelees sensor system design for monitoring velocity and direction of water. Monitoring the flow of water is needed in the field of irrigation and industry, mitigation of floods and many other applications. The system is made comprises a remote terminal unit (RTU) and control terminal unit (CTU). On the RTU are ATSAM3X8E microcontroller and microprocessor that transmit data through WiFi and received by personal computers that are in the CTU. RTU transmit the bases data to the CTU. The water velocity outtakes using waterflow sensor, which changes the magnitude of the flow rate to a variable frequency. Sensor waterflow associated with Schmitt trigger so that the output signal of the sensor is more accurate when read by the microcontroller. The frequency is read by the microcontroller and sent to a RTU computer. Flow direction in the sensor using a potensio that changed the angle (direction) into the barriers and voltage. The data is read by the analog to digital converter (ADC) microcontroller and sent to a RTU computer. Data flow velocities is calibrated with a standard velocitiy and linear correlation coefficient of 0.9997. Results of testing the angle of the magnitude of standard (protractor) linear correlation coefficient  of 1. From these tests it can be concluded that the equipment is fit for use. Keywords : monitoring system, microcontroller, RTU ,CTU, waterflow sensor
RANCANG BANGUN SISTEM ANTARMUKA KOMPUTER UNTUK PENGHITUNGAN LAJU ALIRAN KALOR KONDUKSI PADA MATERIAL PADAT MENGGUNAKAN PROTOKOL RS485 Nailatul Ilmi; Suryono Suryono
Youngster Physics Journal Vol 1, No 1 (2012): Youngster Physics Journal Oktober 2012
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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This research is about computer interface system for determining conduction heat flow rate on massive material using RS485 protocol. The system can be used for monitoring equipment in an industrial feasibility by measuring the rate of heat flow simultaneously at some measuring points of each measurement point that consists of some channels.Heat flow rate monitoring system uses temperature sensor LM35. This sensor serves to convert the temperature into a voltage whose  the results converted into digital signals by the ADC0 and ADC1 microcontroller which then signals are transmitted to the computer using the RS485 protocol.This system has been realized and can display the measured temperature at two different measurement points with two input channels and this system can also calculate the heat flow rate of each its points. The obtained results can be displayed graphically and also can be stored in Microsoft Excel. Keyword : heat flow rate, RS485 protocol, monitoring system, temperature sensor LM35
Sistem monitoring dan otomasi pengontrolan kelembaban media tanam (soil moisture) pada tanaman hidroponik berbasis web Yuyu Wahyudin; Suryono Suryono; Jatmiko Endro Suseno
Youngster Physics Journal Vol 6, No 3 (2017): Youngster Physics Journal Juli 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

A web based system design for soil moisture monitoring and automation was conducted on this research. Soil moisture level controlling is highly needed to optimalize plant cultivation result. The system contains of two main parts, a remote terminal unit (RTU) and control terminal unit (CTU).  RTU has an ATSAM3X8E microcontroller and a microprocessor used for acquiring and sending soil moisture level to database using internet connection. Using internet as telemetry connection is really efficient and gives many advantages such as measurement could be done in distance and also has realtime result. YL-69 sensor used for soil moisture level measurement gives resistance as the output value. This sensor has a module with a 10K ohm voltage devider resistor. The output sensor value converted into digital value using microcontroler analog to digital converter (ADC). This result then being compared with setpoint value to decide whether the water pump turning on or off. The output sensor value also sent and then saved in online database system through internet connection. A reference was used for determining sensor characterization with the linier formulation y = -0.0245x + 99.9560.  The result between sent and received data has no error, so there were no lost or gain data. The response from the sensor tested at setpoint value in 30, 40 and 50 giving errors 3.3%, 6.5% and 10.7% for each value. The system reponse tests showed that in a low setpoint value the system gave a very close value with the setpoint, but as the increasement of the setpoint value, the system got error increasement either. Keywords: database, moisture, microcontroller, soil moisture sensor, telemetry
Rancang bangun sistem pengontrol temperatur menggunakan mikrokontroller ATSAM3X8E pada peralatan ultrasonic assisted extraction (UEA) Siti Hastin Nur Indarwati; Isnain Gunadi; Suryono Suryono
Youngster Physics Journal Vol 6, No 4 (2017): Youngster Physics Journal Oktober 2017
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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In this research, design of temperature control system has been made for Ultrasonic Assisted Extraction (UAE) equipment. The system consisted of elemen pemanas, temperature, sensor such as Resistance Temperature Detector (RTD) sensor, relay, microcontroller and computer interface. Microcontroller that used in this system is ATSAM3X8E microcontroller that connected with computer interface as the temperature data viewer that is using Borland Delphi 7. Temperature controller could be built by RTD sensor through computer interface so it could save and show the data in MySQL database. This system ca be applied as temperature controller system for extraction equipment. From this research’s result showed system that has been built can measure and control temperature using RTD sensor with the error’s value in measurement is 0,04oC. From the controlling system testing’s result with given set point is 35oC can be known that tis controlling system has delay until it started which is for 6 minutes with the control stability’s condition 97,09% and error value 2,91%.Keywords: temperature, controller, RTD sensors, database, MySQL
Rancang Bangun Sistem Wireless Sensor Salinitas Model Kapasitif Nita Melinda; Suryono Suryono
Youngster Physics Journal Vol 7, No 2 (2018): Youngster Physics Journal April 2018
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Salinity is a significant parameter expecially to maritime aspect, such as in aquaculture and offshore agriculture. In most of measuring salinity using manual method and this is not effective. Wireless sensor of salinity using capacitive method, can be used in measuring salinity. This system consists of detector devices which is salinity sensor, processor devices which is microcontroller, and comunication devices using WiFi network. Salinity sensor is made from parallel cylinder which works by utilizing the principle of capacitance. This affect is  the frequency change of output pulse of astable multivibrator circuit. The microcontroller count the output pulse of astable multivibrator using frequency counter program. Data acquisition is made from delphi program on RTU computer. The output pulse of astable multivibrator pass the characterization process and calibration process to produce salinity value. The salinity data is stored in MySQL database and transmitted using WiFi network. The CTU computer which has been connected to the same network can access the data of salinity measurement from RTU, via a specific web address. Based on the research, the range measurement of sensor is between 2 ppt until 20 ppt, with error sensor reading is 9.11 %,. The testing of data transmission system is done by comparing the data generated from RTU and data received by CTU. The result shows that there is an error value of sending data is 0%.  Keyword: Salinity, astable multifibrator, WiFi, capacitance, web
FAST FOURIER TRANSFORM (FFT) UNTUK ANALISIS SINYAL SUARA DOPPLER ULTRASONIK Arif Syaifuddin; Suryono Suryono
Youngster Physics Journal Vol 3, No 3 (2014): Youngster Physics Journal Juli 2014
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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The vibration is a physical phenomenon that frequently occur in a system. This study examines the Doppler effect that occurs in a system by observing signals generated sound system with ultrasonic inspection methods and analyzes these signals to function Fast Fourier Transform (FFT) Matlab. The system is made by utilizing the collision object being towed magnetic field. Collision time is controlled by the microcontroller ATmega16 is used as a reference signal. The experiments were performed 3 times with a delay variation interval or different. The research data in the form of a frequency output signal microcontroller port and the reflected sound wave Doppler ultrasound fetal Doppler devices recording the results using computer software scope version 1.31. The signal was tested by using a fast Fourier transform to look at the frequency domain signal using Matlab 2013 on computer programming. The test results show the system has a lot of FFT frequency. But can be observed the 3 dominant frequency system. The test results compared to the reference frequency FFT shows the amount equal to the sum frequency generated by the microcontroller mean Doppler frequency spectrum of the sound is 387.597 Hz.Keywords: Signal, Doppler Effect, FFT, Ultrasonic Inspection, Dominant Frequency
Rancang Bangun Audiometer Berbasis Mikrokontroler dengan Antarmuka Komputer Kartini Sinaga; Suryono Suryono; Heri Sutanto
Youngster Physics Journal Vol 2, No 3 (2013): Youngster Physics Journal Juli 2013
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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For this research, an audiometer based on microcontroller with computer interface as a measuring instrument for the threshold of audible range has been designed. This device has some features, like graphic display, audio intensity display, and computer frequency. This audiometer intended for the research consists of frequency generator, audio generator, and manual and automatic amplifying switch. The microcontroller is the main component which has the ability to be frequency generator using Fast PWM at timer 1 within 16bit resolution and crystal value 16MHz so that the frequencies at 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, and 8000 Hz can be generated precisely and steadily.The maximum audio intensity as the result of this research using the device was 46,2 dB. The result of the frequency test on the device designed for this research has the linear correlation coefficient R=1, meanwhile the audio intensity measured at the standardized device has the linear correlation coefficient R=0,997Keywords: microcontroller, sound level meter, multi-tester, frequency, audio intensity