A prototype measurement of rainfall intensity was developed using a CCD TSL1401CL linear sensor array. The prototype consists of a He-Ne laser that functions as a light source, which later is focused by the beam expander and conditioned by a convex lens. Each pixel will receive the same voltage depending on the light intensity so that it produces a decimal value of ADC. This ADC decimal value determines rainfall intensity based on the diameter and velocity of the raindrops. The diameter variations used ranges from 1 mm to 10 mm, while for variations in the height of rainfall are 50 cm, 100 cm, and 150 cm. The test results proved that the greater the decimal value of the ADC is, the smaller the diameter of the raindrops detected will be, and vice versa. The values of the diameter and velocity of were used to obtain the value of rainfall intensity. The percentage value of error measuring rainfall intensity is 3.11% when compared to the rain gauge module is still considered rather accurate. However, direct testing is still needed when rain falls with various types and intensities.
{"title":"Prototype of Rainfall Intensity Measurement Using CCD TSL1401CL Linear Sensor Array","authors":"Sixtinah Deswilan, Aldo Novaznursyah Costrada, Harmadi Harmadi","doi":"10.25077/JIF.13.1.18-25.2021","DOIUrl":"https://doi.org/10.25077/JIF.13.1.18-25.2021","url":null,"abstract":"A prototype measurement of rainfall intensity was developed using a CCD TSL1401CL linear sensor array. The prototype consists of a He-Ne laser that functions as a light source, which later is focused by the beam expander and conditioned by a convex lens. Each pixel will receive the same voltage depending on the light intensity so that it produces a decimal value of ADC. This ADC decimal value determines rainfall intensity based on the diameter and velocity of the raindrops. The diameter variations used ranges from 1 mm to 10 mm, while for variations in the height of rainfall are 50 cm, 100 cm, and 150 cm. The test results proved that the greater the decimal value of the ADC is, the smaller the diameter of the raindrops detected will be, and vice versa. The values of the diameter and velocity of were used to obtain the value of rainfall intensity. The percentage value of error measuring rainfall intensity is 3.11% when compared to the rain gauge module is still considered rather accurate. However, direct testing is still needed when rain falls with various types and intensities. ","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43627516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-01DOI: 10.20527/FLUX.V18I1.8888
M. Marjuni, Ori Minarto, S. Wahyono
Distilled water in the laboratory is highly important since it is a basic requirement in the lab work and/or research. The large use of distilled water in the Faculty of Mathematics and Natural Sciences University of Lambung Mangkurat (FMIPA ULM) obliged to depend on its own by providing the equipment to produce distilled water. The efficiency of water is low during producing one liter distilled water due to 35 liters is needed. Several studies have conducted focusing on the energy efficiency and the use of alternative energy in the distilled water production. Efficiency is not only limited on the heating energy sources, but also the cooling component. One of the attempts is modifying the cooling water circulation in the distillation equipment. It aimed that the cooling water is not wasted but is returned to the circuit. In this study, a cooling water circulation modification was carried out by adding a radiator set, submersible pump and storage tank. The distilled water produced from this circuit will be compared with distilled water from distillation equipment without modification. The parameters compared which are: temperature, volume, electrical conductivity and pH. Our research results show that the modified distillation equipment series is feasible to apply since the electrical conductivity of the resulting distilled water is lower than before modification process and also the sediment attached to the boiler wall is formed slower than the distillation equipment without modification. With the need for a lower volume of raw water, a series of modified distillation equipment is also suitable for use in the dry season or during water distribution is not smooth.
{"title":"Modifikasi Sirkulasi Air Pendingin Alat Destilasi pada Proses Pembuatan Akuades","authors":"M. Marjuni, Ori Minarto, S. Wahyono","doi":"10.20527/FLUX.V18I1.8888","DOIUrl":"https://doi.org/10.20527/FLUX.V18I1.8888","url":null,"abstract":"Distilled water in the laboratory is highly important since it is a basic requirement in the lab work and/or research. The large use of distilled water in the Faculty of Mathematics and Natural Sciences University of Lambung Mangkurat (FMIPA ULM) obliged to depend on its own by providing the equipment to produce distilled water. The efficiency of water is low during producing one liter distilled water due to 35 liters is needed. Several studies have conducted focusing on the energy efficiency and the use of alternative energy in the distilled water production. Efficiency is not only limited on the heating energy sources, but also the cooling component. One of the attempts is modifying the cooling water circulation in the distillation equipment. It aimed that the cooling water is not wasted but is returned to the circuit. In this study, a cooling water circulation modification was carried out by adding a radiator set, submersible pump and storage tank. The distilled water produced from this circuit will be compared with distilled water from distillation equipment without modification. The parameters compared which are: temperature, volume, electrical conductivity and pH. Our research results show that the modified distillation equipment series is feasible to apply since the electrical conductivity of the resulting distilled water is lower than before modification process and also the sediment attached to the boiler wall is formed slower than the distillation equipment without modification. With the need for a lower volume of raw water, a series of modified distillation equipment is also suitable for use in the dry season or during water distribution is not smooth.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"130 14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86535673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-23DOI: 10.25077/jif.13.1.1-7.2021
Aldo Novaznursyah Costrada, Sixtinah Deswilan, B. M. Kemal, M. Marzuki, Harmadi Harmadi
Design of multiple-bend extensometer based on optical fiber as landslide sensor has been characterized. Multiple-bending characterization has been done by varying the winding number of optical fiber FD-620-10 to obtain the effective light intensity of photodiode. The light intensity in extensometer was set by varying the resistance of laser diode in the range (150 – 250) Ω. The optimum sensitivity of 0,03984 V/cm was obtained for triple winding of optical fiber. The designed optical extensometer is able to monitor the displacement with an error of 0,59%. This result indicates that the designed extensometer is the more bending on optical fiber, the more it’s sensitivity and the bending loss.
{"title":"Characterization of Multiple-bend Optical Fiber Extensometer Design for Landslide Sensor","authors":"Aldo Novaznursyah Costrada, Sixtinah Deswilan, B. M. Kemal, M. Marzuki, Harmadi Harmadi","doi":"10.25077/jif.13.1.1-7.2021","DOIUrl":"https://doi.org/10.25077/jif.13.1.1-7.2021","url":null,"abstract":"Design of multiple-bend extensometer based on optical fiber as landslide sensor has been characterized. Multiple-bending characterization has been done by varying the winding number of optical fiber FD-620-10 to obtain the effective light intensity of photodiode. The light intensity in extensometer was set by varying the resistance of laser diode in the range (150 – 250) Ω. The optimum sensitivity of 0,03984 V/cm was obtained for triple winding of optical fiber. The designed optical extensometer is able to monitor the displacement with an error of 0,59%. This result indicates that the designed extensometer is the more bending on optical fiber, the more it’s sensitivity and the bending loss.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46527443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-16DOI: 10.20527/flux.v17i2.8332
Albertus Hariwangsa Panuluh, Elisabeth Dian Atmajati, S. Sulandari
Automation of three slit interference experiments has been carried out. The light interference is an interesting phenomenon to observe. The observation of the three-slit interference pattern uses a light sensor that is connected to the computer through the interface. Light intensity data will be directly recorded into the computer and displayed in the form of graphs of the light intensity versus time. To measure the pattern of the formed dark light, the light sensor is placed on a linear drive system. This drive system will move the sensor to the left or right to record the intensity of the pattern of dark light. The purposes of this study are: 1) designing an automatic experiment to observe three slit interference patterns and 2) measuring the wavelength of the light source, He-Ne laser, used in the experiment. From the experiment, we find that the wavelength of He-Ne laser is nm.
{"title":"Otomatisasi Eksperimen Interferensi Tiga Celah","authors":"Albertus Hariwangsa Panuluh, Elisabeth Dian Atmajati, S. Sulandari","doi":"10.20527/flux.v17i2.8332","DOIUrl":"https://doi.org/10.20527/flux.v17i2.8332","url":null,"abstract":"Automation of three slit interference experiments has been carried out. The light interference is an interesting phenomenon to observe. The observation of the three-slit interference pattern uses a light sensor that is connected to the computer through the interface. Light intensity data will be directly recorded into the computer and displayed in the form of graphs of the light intensity versus time. To measure the pattern of the formed dark light, the light sensor is placed on a linear drive system. This drive system will move the sensor to the left or right to record the intensity of the pattern of dark light. The purposes of this study are: 1) designing an automatic experiment to observe three slit interference patterns and 2) measuring the wavelength of the light source, He-Ne laser, used in the experiment. From the experiment, we find that the wavelength of He-Ne laser is nm.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84742004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-10DOI: 10.20527/flux.v17i2.8105
Arista Romadani, E. Rani
The solution of the Dirac equation in the presence of the electromagnetic field on the one-dimensional barrier potential is studied. The energy spectrum and the eigenfunction of the Dirac equation obtained by solving the Dirac equation and we introduced annihilation and creation operators for the Hamiltonian has an identical form in the harmonic oscillator. Regions I and III separated by a potential barrier characterized by the gap energy with the eigenfunctions as a sinusoidal function, and region II has the form of an exponent function. We found the eigenfunction involved positive and negative energy moves exponentially when passed through a barrier.
{"title":"Solusi Persamaan Dirac untuk Fermion dengan Model Potensial Penghalang Medan Elektromagnetik","authors":"Arista Romadani, E. Rani","doi":"10.20527/flux.v17i2.8105","DOIUrl":"https://doi.org/10.20527/flux.v17i2.8105","url":null,"abstract":"The solution of the Dirac equation in the presence of the electromagnetic field on the one-dimensional barrier potential is studied. The energy spectrum and the eigenfunction of the Dirac equation obtained by solving the Dirac equation and we introduced annihilation and creation operators for the Hamiltonian has an identical form in the harmonic oscillator. Regions I and III separated by a potential barrier characterized by the gap energy with the eigenfunctions as a sinusoidal function, and region II has the form of an exponent function. We found the eigenfunction involved positive and negative energy moves exponentially when passed through a barrier.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86664275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, magnesium ferrite was sinthesized from natural iron sand using co-precipitation method. Iron sand material was taken from the north coast of Sarmi Regency, Papua Province. The purpose of this study was to find out whether magnesium ferrite could be synthesized from iron sand directly without preliminary processes into magnetite minerals. Co-precipitation method was applied with a variant of stirring temperature of 30, 50 and 70°C. The crystal structures was characterized using an x-ray diffractometer, while the magnetic properties was characterized using a vibrating sample magnetometer and the morphology of the particle was characterized using a scanning electron microscpe. From the results of characterization, it is known that magnesium ferrite successfully synthesized from iron sand directly without preliminary processes into magnetite minerals. Magnetic properties were obtained from the sample with added of magnesium acetate tetrahedral and stirred at a temperature of 70°C. The x-ray diffracttion pattern showed figure of merit of 0.82, while the magnetic hysterisis curve shows coercivity of 200 Oe and magnetic moment about 11 emu/gr. The mineral has irregular particle sizes that range from 0.5 to 100 microns in size, due to magnetic attraction which promotes agglomeration. This researcher recommends optimization of the synthesis process so that the quality of the magnesium ferrite can be improve.
{"title":"Sintesis Magnesium Ferit Berbasis Pasir Besi dari Sarmi menggunakan Metode Kopresipitasi","authors":"Cahyo Saputra, Heru Cahyoutomo, Jeny Sendong, Octolia Togibasa","doi":"10.20527/FLUX.V17I2.6932","DOIUrl":"https://doi.org/10.20527/FLUX.V17I2.6932","url":null,"abstract":"In this study, magnesium ferrite was sinthesized from natural iron sand using co-precipitation method. Iron sand material was taken from the north coast of Sarmi Regency, Papua Province. The purpose of this study was to find out whether magnesium ferrite could be synthesized from iron sand directly without preliminary processes into magnetite minerals. Co-precipitation method was applied with a variant of stirring temperature of 30, 50 and 70°C. The crystal structures was characterized using an x-ray diffractometer, while the magnetic properties was characterized using a vibrating sample magnetometer and the morphology of the particle was characterized using a scanning electron microscpe. From the results of characterization, it is known that magnesium ferrite successfully synthesized from iron sand directly without preliminary processes into magnetite minerals. Magnetic properties were obtained from the sample with added of magnesium acetate tetrahedral and stirred at a temperature of 70°C. The x-ray diffracttion pattern showed figure of merit of 0.82, while the magnetic hysterisis curve shows coercivity of 200 Oe and magnetic moment about 11 emu/gr. The mineral has irregular particle sizes that range from 0.5 to 100 microns in size, due to magnetic attraction which promotes agglomeration. This researcher recommends optimization of the synthesis process so that the quality of the magnesium ferrite can be improve.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82716645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-03DOI: 10.25077/JIF.11.1.13-17.2019
Dahyunir Dahlan, Andhika Dwipanur P.U, Nini Firmawati, Akrajas Ali Umar
Lapisan TiO2 yang didoping Pd dengan metode deposisi fase cair (Liquid Phase Deposition, LPD) telah dilakukan. Adapun tujuan sintesis lapisan tersebut adalah untuk mendapatkan lapisan yang terdiri dari nanoplate yang akan diaplikasikan untuk fotoanoda sel surya. Sebagai larutan prekursor digunakan 0,5 M (NH4)2TiF6 dengan variasi doping Pd adalah 0; 6.25; 12.50; 25,00 dan 50,00 mM. Penumbuhan lapisan dilakukan pada suhu 900°C selama 9 jam.Didapatkan berturut-turut energi gap adalah 3,20; 3,25; 3,18; 3,16; dan 3,10 eV. Karakterisasi FESEM menunjukkan bahwa lapisan yang dihasilkan terdiri dari partikel berbentuk nanoplate yang tersebar merata di permukaan substrat ITO. Luas nanoplate yang dihasilkan di bawah 100 μm2 dengan ketebalan beberapa nanometer. Karakterisasi-karakterisasi ini menunjukkan bahwa lapisan TiO2 yang didoping oleh Pd sangat berpotensi sebagai photoanode untuk elektroda sel surya DSSC (Dye Sensitized Solar Cell).
{"title":"Pengaruh Doping Palladium (Pd) Terhadap Lapisan TiO2 dengan Metode LPD untuk Applikasi Fotoanoda Sel Surya DSSC","authors":"Dahyunir Dahlan, Andhika Dwipanur P.U, Nini Firmawati, Akrajas Ali Umar","doi":"10.25077/JIF.11.1.13-17.2019","DOIUrl":"https://doi.org/10.25077/JIF.11.1.13-17.2019","url":null,"abstract":"Lapisan TiO2 yang didoping Pd dengan metode deposisi fase cair (Liquid Phase Deposition, LPD) telah dilakukan. Adapun tujuan sintesis lapisan tersebut adalah untuk mendapatkan lapisan yang terdiri dari nanoplate yang akan diaplikasikan untuk fotoanoda sel surya. Sebagai larutan prekursor digunakan 0,5 M (NH4)2TiF6 dengan variasi doping Pd adalah 0; 6.25; 12.50; 25,00 dan 50,00 mM. Penumbuhan lapisan dilakukan pada suhu 900°C selama 9 jam.Didapatkan berturut-turut energi gap adalah 3,20; 3,25; 3,18; 3,16; dan 3,10 eV. Karakterisasi FESEM menunjukkan bahwa lapisan yang dihasilkan terdiri dari partikel berbentuk nanoplate yang tersebar merata di permukaan substrat ITO. Luas nanoplate yang dihasilkan di bawah 100 μm2 dengan ketebalan beberapa nanometer. Karakterisasi-karakterisasi ini menunjukkan bahwa lapisan TiO2 yang didoping oleh Pd sangat berpotensi sebagai photoanode untuk elektroda sel surya DSSC (Dye Sensitized Solar Cell).","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48587348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-27DOI: 10.20527/flux.v17i1.6634
J. Junaidi, Handani Wahyu Hesti, Suciyati Wahyu Sri, Supriyanto Amir
In this research, design and realization of temperature and speed control instrument using thermocouple and pulse width modulation based on arduino for hotplate stirrer aplication have been carried out. This instrument is laboratory tool used for stiring and heating a chemical liquid with capability up to 1200 rpm and 300 o C, respectively. The main components used in the manufacture of hotplate stirrer are Arduino mega, DC motor, tubular heater, LM393 optocoupler sensor, MAX6675 type-K thermocouple, and sevent segment. The hotplate stirrer has a tolerance of rotational speed measurement of ±5 rpm and a tolerance of temperature measurement of ±5 o C. The accuracy of temperature and rotating speed measurement in this instrument about 0,25 o C and 2 rpm. Based on its capabilities, this instrument can be applied to research on synthesis of material at the micro and nano scale.
{"title":"Kontrol Kecepatan dan Temperatur dengan Teknik Pulse Widht Modulation untuk Aplikasi Hotplate Stirrer Berbasis Arduino","authors":"J. Junaidi, Handani Wahyu Hesti, Suciyati Wahyu Sri, Supriyanto Amir","doi":"10.20527/flux.v17i1.6634","DOIUrl":"https://doi.org/10.20527/flux.v17i1.6634","url":null,"abstract":"In this research, design and realization of temperature and speed control instrument using thermocouple and pulse width modulation based on arduino for hotplate stirrer aplication have been carried out. This instrument is laboratory tool used for stiring and heating a chemical liquid with capability up to 1200 rpm and 300 o C, respectively. The main components used in the manufacture of hotplate stirrer are Arduino mega, DC motor, tubular heater, LM393 optocoupler sensor, MAX6675 type-K thermocouple, and sevent segment. The hotplate stirrer has a tolerance of rotational speed measurement of ±5 rpm and a tolerance of temperature measurement of ±5 o C. The accuracy of temperature and rotating speed measurement in this instrument about 0,25 o C and 2 rpm. Based on its capabilities, this instrument can be applied to research on synthesis of material at the micro and nano scale.","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74196225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-23DOI: 10.25077/jif.11.2.81-87.2019
Nisaul Chaira Yeni, Dian Milvita, Heru Prasetio
Telah dilakukan kalibrasi TLD-100 di udara menggunakan radiasi sinar-X pada rentang Radiation Qualities in Radiodiagnostik (RQR). Kalibrasi dilakukan untuk mengetahui koefisien kalibrasi TLD di udara, faktor koreksi kualitas radiasi dan pengaruh variasi dosis radiasi terhadap koefisien kalibrasi. Penelitian menggunakan pesawat sinar-X konvensional sebagai sumber radiasi, detektor TLD-100 sebagai detektor yang akan dikalibrasi dan detektor unfors-X2 sebagai detektor standar. Dosis radiasi yang digunakan yaitu (0,2; 0,3; 0,5; 0,7) mGy dengan variasi tegangan (50, 60, 70, 80, 90, 100) kV. Hasil penelitian menunjukkan nilai koefisien kalibrasi TLD bergantung kepada kualitas radiasi sehingga TLD harus dikalibrasi pada setiap tegangan. Nilai faktor koreksi kualitas radiasi berada pada rentang 0,825 ± 0,097 sampai 1,039 ± 0,084 yang berarti kemampuan detektor merespon radiasi berbeda-beda seiring perubahan kualitas radiasi. Nilai koefisien kalibrasi meningkat seiring bertambahnya nilai dosis radiasi.Kata kunci: koefisien kalibrasi, faktor koreksi, TLD
{"title":"Kalibrasi TLD-100 di Udara Menggunakan Radiasi Sinar-X Pada Rentang Radiation Qualities in Radiodiagnostik (RQR)","authors":"Nisaul Chaira Yeni, Dian Milvita, Heru Prasetio","doi":"10.25077/jif.11.2.81-87.2019","DOIUrl":"https://doi.org/10.25077/jif.11.2.81-87.2019","url":null,"abstract":"Telah dilakukan kalibrasi TLD-100 di udara menggunakan radiasi sinar-X pada rentang Radiation Qualities in Radiodiagnostik (RQR). Kalibrasi dilakukan untuk mengetahui koefisien kalibrasi TLD di udara, faktor koreksi kualitas radiasi dan pengaruh variasi dosis radiasi terhadap koefisien kalibrasi. Penelitian menggunakan pesawat sinar-X konvensional sebagai sumber radiasi, detektor TLD-100 sebagai detektor yang akan dikalibrasi dan detektor unfors-X2 sebagai detektor standar. Dosis radiasi yang digunakan yaitu (0,2; 0,3; 0,5; 0,7) mGy dengan variasi tegangan (50, 60, 70, 80, 90, 100) kV. Hasil penelitian menunjukkan nilai koefisien kalibrasi TLD bergantung kepada kualitas radiasi sehingga TLD harus dikalibrasi pada setiap tegangan. Nilai faktor koreksi kualitas radiasi berada pada rentang 0,825 ± 0,097 sampai 1,039 ± 0,084 yang berarti kemampuan detektor merespon radiasi berbeda-beda seiring perubahan kualitas radiasi. Nilai koefisien kalibrasi meningkat seiring bertambahnya nilai dosis radiasi.Kata kunci: koefisien kalibrasi, faktor koreksi, TLD","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48868086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-23DOI: 10.25077/jif.11.2.88-94.2019
A. Awaluddin, Harmadi Harmadi, M. Marzuki
Telah dilakukan rancang bangun sistem pengukuran diameter butiran air menggunakan fotodioda array dan transceiver nRF24L01+. Sistem pengukuran diameter butiran air terdiri dari laser dioda, fotodioda array, mikrokontroler Arduino Uno R3 dan transceiver nRF24L01+. Pengukuran dilakukan saat butiran air yang berasal dari wadah, dengan variasi ukuran diameter; 1 mm, 2 mm, dan 3 mm, melewati sinar laser dan ditangkap oleh fotodioda array. Fotodioda array mengubah cahaya menjadi sinyal listrik dalam bentuk tegangan keluaran dan diolah menggunakan mikrokontroler Arduino Uno R3. Data yang dihasilkan dikirim secara telemetri nirkabel dengan menggunakan transceiver nRF24L01+ dan ditampilkan pada PC dan LCD dalam bentuk hasil pengukuran. Karakterisasi sensor fotodioda array menghasilkan nilai koefisien determinasi (R2) sebesar 0,997 dan nilai fungsi transfer yaitu 21,975e–0,004x yang dimasukkan ke dalam program. Hasil pengujian memperlihatkan semakin rendah tegangan menandakan diameter butiran air hujan semakin besar. Hasil pengukuran diameter butiran air memiliki nilai error rata-rata 0,66. Sistem memiliki jarak pengiriman maksimum 1000 m tanpa penghalang dan jarak pengiriman minimum 550 m dengan penghalang.Kata kunci: fotodioda array, pengukuran butiran air, transceiver nRF24L01+
采用nRF24L01+型光电二极管阵列和收发信机,设计了水尺直径的测量系统。水细节直径测量系统由激光二极管、光电二极管阵列、Arduino Uno R3微控制器和nRF24L01+收发器组成。当水的细节来自容器时,应进行测量,直径测量值有所变化;1毫米、2毫米和3毫米,穿过激光束并被光电二极管阵列捕获。光电二极管阵列使用Arduino Uno R3微控制器将光转换为输出电压形式的电信号。所产生的数据通过电缆遥测使用nRF24L01+收发器进行传输,并以测量结果的形式显示在PC和LCD上。光电二极管阵列传感器的特性产生0.997的确定系数(R2)值和21.975e–0.004x的传递函数值,输入程序。试验结果表明,应力越来越低,表明水颗粒的直径越来越大。测量水细节的直径的结果具有0.66的平均误差值。该系统在没有障碍物的情况下的最大调度距离为1000m,在有障碍物的条件下的最小调度距离为550m。关键词:光电二极管阵列,水细节测量,nRF24L01收发器+
{"title":"Rancang Bangun Sistem Pengukuran Diameter Butiran Air Menggunakan Fotodioda Array dan Transceiver nRF24L01+","authors":"A. Awaluddin, Harmadi Harmadi, M. Marzuki","doi":"10.25077/jif.11.2.88-94.2019","DOIUrl":"https://doi.org/10.25077/jif.11.2.88-94.2019","url":null,"abstract":"Telah dilakukan rancang bangun sistem pengukuran diameter butiran air menggunakan fotodioda array dan transceiver nRF24L01+. Sistem pengukuran diameter butiran air terdiri dari laser dioda, fotodioda array, mikrokontroler Arduino Uno R3 dan transceiver nRF24L01+. Pengukuran dilakukan saat butiran air yang berasal dari wadah, dengan variasi ukuran diameter; 1 mm, 2 mm, dan 3 mm, melewati sinar laser dan ditangkap oleh fotodioda array. Fotodioda array mengubah cahaya menjadi sinyal listrik dalam bentuk tegangan keluaran dan diolah menggunakan mikrokontroler Arduino Uno R3. Data yang dihasilkan dikirim secara telemetri nirkabel dengan menggunakan transceiver nRF24L01+ dan ditampilkan pada PC dan LCD dalam bentuk hasil pengukuran. Karakterisasi sensor fotodioda array menghasilkan nilai koefisien determinasi (R2) sebesar 0,997 dan nilai fungsi transfer yaitu 21,975e–0,004x yang dimasukkan ke dalam program. Hasil pengujian memperlihatkan semakin rendah tegangan menandakan diameter butiran air hujan semakin besar. Hasil pengukuran diameter butiran air memiliki nilai error rata-rata 0,66. Sistem memiliki jarak pengiriman maksimum 1000 m tanpa penghalang dan jarak pengiriman minimum 550 m dengan penghalang.Kata kunci: fotodioda array, pengukuran butiran air, transceiver nRF24L01+","PeriodicalId":52720,"journal":{"name":"JIF Jurnal Ilmu Fisika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44651725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}