Pub Date : 2022-01-31DOI: 10.23960/jtaf.v10i1.2912
Qonitatul Hidayah, Umi Salamah, M. Sasono
{"title":"Analisis Uji Peluncuran Roket Air Berbasis Carbon Fiber Menggunakan Sistem Telemetri","authors":"Qonitatul Hidayah, Umi Salamah, M. Sasono","doi":"10.23960/jtaf.v10i1.2912","DOIUrl":"https://doi.org/10.23960/jtaf.v10i1.2912","url":null,"abstract":"","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125822321","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 : 2022-01-31DOI: 10.23960/jtaf.v10i1.2888
Sri Wahyu Suciyati, Posman Manurung, J. Junaidi, R. Situmeang
{"title":"Efek Variasi Konsentrasi NaOH pada Pembentukan Struktur Selulosa Cladophora sp.","authors":"Sri Wahyu Suciyati, Posman Manurung, J. Junaidi, R. Situmeang","doi":"10.23960/jtaf.v10i1.2888","DOIUrl":"https://doi.org/10.23960/jtaf.v10i1.2888","url":null,"abstract":"","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127553441","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 : 2022-01-31DOI: 10.23960/jtaf.v10i1.2889
Janariah Janariah, Jessy Oktayulia Sari, Simon Sembiring, J. Junaidi
{"title":"Studi Pendahuluan Pembentukan Struktur Komposit Perak Silika (Ag/SiO2) Berbasis Sekam Padi","authors":"Janariah Janariah, Jessy Oktayulia Sari, Simon Sembiring, J. Junaidi","doi":"10.23960/jtaf.v10i1.2889","DOIUrl":"https://doi.org/10.23960/jtaf.v10i1.2889","url":null,"abstract":"","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"883 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113996292","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}
Leni Rumiyanti, Catur Destiana, Ria Oktaviani, Simon Sembiring, S. Syafriadi, Ni Luh Gede Ratna Juliasih Ni Luh Gede Ratna Juliasih
Research has been conducted to test silica function groups based on rice husks with temperature variations and concentrations of Cetyltrimethylammonium Bromide as raw materials for mesoporous silica. In this study, rice husk silica was synthesized by alkaline method with variations in CTAB concentrations of 2.0%, 2.5%, 3.0%, 3.5%, and hydrothermal treatments with temperature variations of 120, 130, 145, and 160ºC for 1 hour in an autoclave. Fourier-Transform Infrared (FTIR) results showed the presence of the most dominant clusters, namely Si-O-Si and other groups such as C-H, -H, O-H, and –OH. Therefore, silica-based rice husks can be used as raw materials mesoporous silica
{"title":"Pengujian Gugus Fungsi Silika Berbasis Sekam Padi Dengan Variasi Suhu & Konsentrasi Cetyltrimethylammonium Bromide Sebagai Bahan Baku Mesoporous Silica","authors":"Leni Rumiyanti, Catur Destiana, Ria Oktaviani, Simon Sembiring, S. Syafriadi, Ni Luh Gede Ratna Juliasih Ni Luh Gede Ratna Juliasih","doi":"10.23960/JTAF.V9I2.2727","DOIUrl":"https://doi.org/10.23960/JTAF.V9I2.2727","url":null,"abstract":"Research has been conducted to test silica function groups based on rice husks with temperature variations and concentrations of Cetyltrimethylammonium Bromide as raw materials for mesoporous silica. In this study, rice husk silica was synthesized by alkaline method with variations in CTAB concentrations of 2.0%, 2.5%, 3.0%, 3.5%, and hydrothermal treatments with temperature variations of 120, 130, 145, and 160ºC for 1 hour in an autoclave. Fourier-Transform Infrared (FTIR) results showed the presence of the most dominant clusters, namely Si-O-Si and other groups such as C-H, -H, O-H, and –OH. Therefore, silica-based rice husks can be used as raw materials mesoporous silica","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114927505","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}
Hasil perancangan prototipe instrumen pengukuran gradien termal yang telah dilakukan sebelumnya membutuhkan pengujian lapangan. Pengujian ini bertujuan untuk melihat kemampuan instrumen prototipe dalam uji pengukuran langsung di lapangan panas bumi. Metode yang digunakan dalam pengujian adalah dengan membandingkan hasil pengukuran suhu pada instrumen prototipe dengan hasil pengukuran suhu menggunakan instrumen MAE A5000T penelitian sebelumnya di Padang Cermin. Penghitungan gradien termal dilakukan secara otomatis oleh sistem dalam prototipe menggunakan teknik kuadrat terkecil ( Least Squares Method ). Hasil pengukuran menunjukkan adanya keselarasan suhu khususnya pada area manifestasi. Peta sebaran suhu mengindikasikan pola klasterisasi yang menunjukkan hubungan aliran fluida panas, khususnya pada arah barat-timur. Adanya konektivitas fluida panas ini diinterpretasikan sebagai struktur geologi atau zona permeable pada area manifestasi. Hasil pengukuran gradien termal juga menunjukkan pola gradien tinggi di area manifestasi panas bumi. Selain itu, sebaran nilai suhu rendah pada ketiga layer juga mengindikasikan sumber aliran fluida air permukaan yang selaras dengan arah puncak gunung. Hal ini memperkuat indikasi bahwa sumber recharge atau resapan air meteorik didominasi oleh puncak Gunung Ratai. Temuan ini mengindikasikan bahwa prototipe instrumen pengukuran gradien termal ini mampu digunakan di lapangan panas bumi.
{"title":"Pengujian Prototipe Instrumen Pengukuran Gradien Termal di Lapangan Panas Bumi Padang Cermin Pesawaran","authors":"Karyanto Karyanto, I. B. Darmawan","doi":"10.23960/JTAF.V9I2.2775","DOIUrl":"https://doi.org/10.23960/JTAF.V9I2.2775","url":null,"abstract":"Hasil perancangan prototipe instrumen pengukuran gradien termal yang telah dilakukan sebelumnya membutuhkan pengujian lapangan. Pengujian ini bertujuan untuk melihat kemampuan instrumen prototipe dalam uji pengukuran langsung di lapangan panas bumi. Metode yang digunakan dalam pengujian adalah dengan membandingkan hasil pengukuran suhu pada instrumen prototipe dengan hasil pengukuran suhu menggunakan instrumen MAE A5000T penelitian sebelumnya di Padang Cermin. Penghitungan gradien termal dilakukan secara otomatis oleh sistem dalam prototipe menggunakan teknik kuadrat terkecil ( Least Squares Method ). Hasil pengukuran menunjukkan adanya keselarasan suhu khususnya pada area manifestasi. Peta sebaran suhu mengindikasikan pola klasterisasi yang menunjukkan hubungan aliran fluida panas, khususnya pada arah barat-timur. Adanya konektivitas fluida panas ini diinterpretasikan sebagai struktur geologi atau zona permeable pada area manifestasi. Hasil pengukuran gradien termal juga menunjukkan pola gradien tinggi di area manifestasi panas bumi. Selain itu, sebaran nilai suhu rendah pada ketiga layer juga mengindikasikan sumber aliran fluida air permukaan yang selaras dengan arah puncak gunung. Hal ini memperkuat indikasi bahwa sumber recharge atau resapan air meteorik didominasi oleh puncak Gunung Ratai. Temuan ini mengindikasikan bahwa prototipe instrumen pengukuran gradien termal ini mampu digunakan di lapangan panas bumi.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129756785","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}
Dewi Puspitasari, Arif Surtono, Sri Wahyu Suciyati, Gurum Ahmad Pauzi
Telah dilakukan penelitian dengan pengaplikasian sensor gas TGS 2620 dan MQ 138 untuk mendeteksi kematangan buah durian berbasis Raspberry Pi 3b. Penelitian ini dilakukan untuk menghasilkan alat deteksi tingkat kematangan buah durian. Durian diletakkan ke dalam ruang sampel yang berisi sensor gas. Metode klasifikasi yang digunakan untuk menentukan kematangan buah menggunakan K-Nearest Neighbor (KNN). Pengujian KNN dalam klasifikasi kematangan durian menggunakan sensor gas memiliki akurasi keseluruhan 91,07%.
{"title":"Aplikasi Sensor TGS2620 dan MQ138 untuk Mendeteksi Kematangan Buah Durian Berbasis Raspberry Pi 3B","authors":"Dewi Puspitasari, Arif Surtono, Sri Wahyu Suciyati, Gurum Ahmad Pauzi","doi":"10.23960/JTAF.V9I2.2760","DOIUrl":"https://doi.org/10.23960/JTAF.V9I2.2760","url":null,"abstract":"Telah dilakukan penelitian dengan pengaplikasian sensor gas TGS 2620 dan MQ 138 untuk mendeteksi kematangan buah durian berbasis Raspberry Pi 3b. Penelitian ini dilakukan untuk menghasilkan alat deteksi tingkat kematangan buah durian. Durian diletakkan ke dalam ruang sampel yang berisi sensor gas. Metode klasifikasi yang digunakan untuk menentukan kematangan buah menggunakan K-Nearest Neighbor (KNN). Pengujian KNN dalam klasifikasi kematangan durian menggunakan sensor gas memiliki akurasi keseluruhan 91,07%.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124923766","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}
Indoor air quality needs attention, especially during the COVID-19 pandemic because the majority of activities are carried out indoors. The air in the room must be protected from the threat of harmful virus and bacterial contaminants. One such innovation is placing diffuser in the room. Diffuser is a device that converts liquid into gas particles in the air. To reduce harmful virus contamination, a natural antiseptic liquid is filled into the diffuser, one of which is papermint essential oil, which can provide freshness in the room. Air quality is monitored with internet of things (IoT) technology so that users can easily control air quality with just a PC/gadget. The gas output from the diffuser is detected by a gas sensor that is connected to the wemos board so that the data can be connected to the internet cloud. To obtain optimal air quality data, the placement of gas sensors in the area around the diffuser as a point of observation needs to be considered because the distribution of gas in the air is influenced by the vertical wind speed in the room, this can affect the quality of the data generated. This study aims to determine the optimal observation point on an IoT-based diffuser so that the resulting air quality data is more accurate. In this study the gas sensor was placed at a distance of 15 and 25 cm from the diffuser. The direction of the gas sensor placement was adjusted according to the angle of the full circle ranging from 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°, and 0°. The distribution of gas is influenced by the vertical wind speed in the room causing the air quality data at a vertical angle to always have the same pattern. From the results obtained, the optimal observation point as a reference for the position of the gas sensor to the diffuser is at an angle between 135°-180° as well as at an angle between 315° -0°.
{"title":"Penentuan Titik Pengamatan Optimal Terhadap Kualitas Udara pada Gas Keluaran Diffuser berbasis Internet of Things","authors":"I. Hikmah, A. Ramadhani, Fikra Titan Syifa","doi":"10.23960/JTAF.V9I2.2754","DOIUrl":"https://doi.org/10.23960/JTAF.V9I2.2754","url":null,"abstract":"Indoor air quality needs attention, especially during the COVID-19 pandemic because the majority of activities are carried out indoors. The air in the room must be protected from the threat of harmful virus and bacterial contaminants. One such innovation is placing diffuser in the room. Diffuser is a device that converts liquid into gas particles in the air. To reduce harmful virus contamination, a natural antiseptic liquid is filled into the diffuser, one of which is papermint essential oil, which can provide freshness in the room. Air quality is monitored with internet of things (IoT) technology so that users can easily control air quality with just a PC/gadget. The gas output from the diffuser is detected by a gas sensor that is connected to the wemos board so that the data can be connected to the internet cloud. To obtain optimal air quality data, the placement of gas sensors in the area around the diffuser as a point of observation needs to be considered because the distribution of gas in the air is influenced by the vertical wind speed in the room, this can affect the quality of the data generated. This study aims to determine the optimal observation point on an IoT-based diffuser so that the resulting air quality data is more accurate. In this study the gas sensor was placed at a distance of 15 and 25 cm from the diffuser. The direction of the gas sensor placement was adjusted according to the angle of the full circle ranging from 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°, and 0°. The distribution of gas is influenced by the vertical wind speed in the room causing the air quality data at a vertical angle to always have the same pattern. From the results obtained, the optimal observation point as a reference for the position of the gas sensor to the diffuser is at an angle between 135°-180° as well as at an angle between 315° -0°.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125049816","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}
Honeys come in many varieties based on quality attributes and region origin. Electronic nose systems have been adopted and used to classify honey types based on physicochemical parameters. This study was aimed to build a low cost electronic nose (e-nose) based on metal oxide semiconductor (MOS) gas sensors, and then used to evaluate the qualities of two types of honeys and one non honey based on sugar contents and pH values. Six gas sensors of MQ modules namely MQ2, MQ3, MQ4, MQ5, MQ6, MQ9, and an Arduino microcontroller were used in this system. Software of Arduino IDE, PLX-DAQ, and Python were applied to record output voltages of each sensor, saved in Excel format, and to calculate trapezoid areas respectively. Honey samples were named as A, B, and C which were. a national brand honey, a local forest honey, and date syrup respectively. The results show higher output voltages for MQ 3, MQ 4, and MQ 6 sensors. The six sensors are able to differentiate between the two honey types and non honey. Sample A has the highest trapezoid area while sample C has the lowest area. This could be caused by higher pH value of sample C.
{"title":"Rancang Bangun Sistem Hidung Elektronik Berbasis Sensor Gas MQ untuk Mengevaluasi Kualitas Madu","authors":"Minarni Shiddiq, Annisa Fadlillah, Sinta Afria Ningsih, Ikhsan Rahman Husein","doi":"10.23960/JTAF.V9I2.2722","DOIUrl":"https://doi.org/10.23960/JTAF.V9I2.2722","url":null,"abstract":"Honeys come in many varieties based on quality attributes and region origin. Electronic nose systems have been adopted and used to classify honey types based on physicochemical parameters. This study was aimed to build a low cost electronic nose (e-nose) based on metal oxide semiconductor (MOS) gas sensors, and then used to evaluate the qualities of two types of honeys and one non honey based on sugar contents and pH values. Six gas sensors of MQ modules namely MQ2, MQ3, MQ4, MQ5, MQ6, MQ9, and an Arduino microcontroller were used in this system. Software of Arduino IDE, PLX-DAQ, and Python were applied to record output voltages of each sensor, saved in Excel format, and to calculate trapezoid areas respectively. Honey samples were named as A, B, and C which were. a national brand honey, a local forest honey, and date syrup respectively. The results show higher output voltages for MQ 3, MQ 4, and MQ 6 sensors. The six sensors are able to differentiate between the two honey types and non honey. Sample A has the highest trapezoid area while sample C has the lowest area. This could be caused by higher pH value of sample C.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131111467","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}
Desain Pengendali A Modified Fractional Order PID ( ) untuk Pengendalian Level Pressurizer pada Pressurized Water Reactor (PWR). Sistem pengendalian level air pada pressurizer ini dilakukan untuk menjaga keselamatan saat reaktor PWR sedang beroperasi. Pengendalian ini dilakukan dengan mempertahankan level air di pressurizer pada setpoint ketinggian tertentu. Ketinggian level air akan berubah sesuai dengan kondisi dari reaktor nuklir seperti bila terjadi proses pengisian, pemanasan, pendinginan, perubahan konsentrasi boric acid dalam kalang primer, serta kemungkinan adanya kebocoran di pompa sirkulasi utama atau jalur pipa primer. Berbagai metode pengendalian telah banyak dikembangkan dengan tujuan untuk mendapatkan sistem pengendalian dengan tingkat respond sistem dan keselamatan paling baik. Penelitian ini bertujuan untuk menjawab permasalah yang ada dengan menggunakan sistem pengendalian Fractional Order PID serta membuktikan bahwa dengan menggunakan sistem pengendali tersebut akan memberikan hasil yang lebih baik dari aplikasi sistem yang sudah ada. Pada penelitian ini diperoleh konfigurasi gain pengendali FOPID yang paling sesuai dengan persyaratan desain dengan nilai Kp sebesar 223.764, Ki sebesar 132.404, Kd sebesar 93.98 dan λ sebesar 0.0119, sebesar 1.0080, yang menghasilkan waktu penetapan ( settling time ) lebih cepat 285 kali dan lewatan maksimum ( maximum overshoot ) lebih rendah 48.6 kali bila dibandingkan dengan pengendali digabung dengan pada penelitian sebelumnya.
{"title":"Desain Pengendali A Modified Fractional Order PID (PI^λ D^μ) untuk Pengendalian Level Pressurizer pada Pressurized Water Reactor (PWR)","authors":"Rissa Damayanti, A. Halim","doi":"10.23960/JTAF.V9I2.2821","DOIUrl":"https://doi.org/10.23960/JTAF.V9I2.2821","url":null,"abstract":"Desain Pengendali A Modified Fractional Order PID ( ) untuk Pengendalian Level Pressurizer pada Pressurized Water Reactor (PWR). Sistem pengendalian level air pada pressurizer ini dilakukan untuk menjaga keselamatan saat reaktor PWR sedang beroperasi. Pengendalian ini dilakukan dengan mempertahankan level air di pressurizer pada setpoint ketinggian tertentu. Ketinggian level air akan berubah sesuai dengan kondisi dari reaktor nuklir seperti bila terjadi proses pengisian, pemanasan, pendinginan, perubahan konsentrasi boric acid dalam kalang primer, serta kemungkinan adanya kebocoran di pompa sirkulasi utama atau jalur pipa primer. Berbagai metode pengendalian telah banyak dikembangkan dengan tujuan untuk mendapatkan sistem pengendalian dengan tingkat respond sistem dan keselamatan paling baik. Penelitian ini bertujuan untuk menjawab permasalah yang ada dengan menggunakan sistem pengendalian Fractional Order PID serta membuktikan bahwa dengan menggunakan sistem pengendali tersebut akan memberikan hasil yang lebih baik dari aplikasi sistem yang sudah ada. Pada penelitian ini diperoleh konfigurasi gain pengendali FOPID yang paling sesuai dengan persyaratan desain dengan nilai Kp sebesar 223.764, Ki sebesar 132.404, Kd sebesar 93.98 dan λ sebesar 0.0119, sebesar 1.0080, yang menghasilkan waktu penetapan ( settling time ) lebih cepat 285 kali dan lewatan maksimum ( maximum overshoot ) lebih rendah 48.6 kali bila dibandingkan dengan pengendali digabung dengan pada penelitian sebelumnya.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115698184","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}
Afrahun Naziah, Nazli Ismail, Nasrullah Zaini, Muhammad Nanda
Abstract. This research has mapped the active fault of the Seulimeum segment part of the extension of The Great Sumatran Fault (GSF) in the northern as preparation for disaster mitigation. Nevertheless, seismic activity significantly on the Seulimeum segment still has not happened yet. This situation has the potential for a hugely destructive earthquake with a magnitude reaching ~7.4 and also will threaten the Weh island at the northernmost end of the Seulimeum segment even though the Weh island is a settlement, integrated economy area, tourism, trade area, and freeport zone. This study used geophysical methods, i.e., geomagnetic methods, for subsurface investigation. Each distance of 500m data was measured throughout the island using the Proton Precession Magnetometer (PPM) GEM 19 to get 204 total magnetic field data. The correction process (e.g., diurnal and IGRF) is done to get the total intensity of magnetic anomalies. Based on the calculation of residual data and analytical signals from the intensity of total magnetic anomalies, Interpretation found 13 fault distributions around the island with orientation in the northwest-southeast. This result has in agreement with the previous studies. However, this research has did not yet got information about geometry and fault depth. Comprehensive research is needed to complete it. Keywords : The Great Sumatran fault, Seulimuem segment, geomacnetic, Weh island. Abstrak. Salah satu upaya dalam persiapan mitigasi bencana adalah pemetaan patahan yang diduga aktif. Penelitian ini telah memetakan perpanjangan patahan aktif The Great Sumatran Fault (GSF) dari Segmen Seulimeum. Meskipun Segmen Seuliemuem merupakan bagian dari GSF yang sangat aktif dibagian selatan Sumatera, namun aktivitas seismik secara signifikan dibagian segmen seulimeum masih belum terjadi. Hal ini diperkirakan berpotensi menghasilkan gempa besar dengan magnitudo mencapai ~7.4. Keadaan ini juga mengancam Pulau Weh yang berada di ujung bagian utara dari Segmen Seulimeum. Padahal Pulau Weh merupakan kawasan pemukiman, ekonomi terpadu, pariwisata dan pelabuhan bebas. Penelitian ini menggunakan metode geofisika yaitu metode geomagnetic untuk investigasi bawah permukaan. Pendekatan metode geofisika dari metode magnetik dilakukan untuk melengkapi dan memperbaharui temuan pada penelitian-penelitian sebelumnya terkait distribusi patahan dan perpanjangan Segmen Seulimeum dari GSF. Pengambilan data dilakukan sebanyak 204 titik dengan jarak antar titik ± 500 meter di seluruh Pulau Weh menggunakan Proton Precession Magnetometer (PPM) GEM 19. Data hasil pengukuran kemudian dilakukan koreksi International Geomagnetic Reference Field (IGRF) dan diurnal untuk mendapatkan nilai anomali intensitas magnetik total di Pulau Weh. Hasil interpretasi berdasarkan pengukuran efek regional dan perhitungan signal analytik didapatkan sebaran patahan sebanyak 13 patahan dengan orientasi timur laut-tenggara Pulau Weh. Temuan distribusi patahan ini mengikuti pola keses
摘要本研究绘制了大苏门答腊断层(GSF)北部延伸部分Seulimeum段的活动断层，为减灾做准备。然而，在Seulimeum段仍未发生明显的地震活动。在这种情况下，有可能发生震级达7.4级的大地震。而且，位于Seulimeum段最北端的威海岛，虽然是居住、综合经济区、旅游、贸易、自由港地区，但也会受到威胁。本研究使用地球物理方法，即地磁方法进行地下调查。利用质子进动磁强计(PPM) GEM 19在全岛测量每500米距离的数据，得到204个总磁场数据。通过校正过程(如日和IGRF)得到磁异常的总强度。根据残差数据的计算和全磁异常强度的分析信号，解译发现岛周围有13个断层分布，方向为西北-东南。这一结果与以往的研究结果一致。然而，这项研究尚未获得断层的几何形状和断层深度信息。需要全面的研究来完成它。关键词:大苏门答腊断裂;Seulimuem段;地磁;Abstrak。我是说，我是说，我是说，我是说，我是说，我是说，我是说，我是说。Penelitian ini telah memetakan perpanjangan patahan aktif大苏门答腊断层(GSF) dari Segmen SeulimeumMeskipun Segmen Seuliemuem merupakan bagian dari GSF yang sangat aktif dibagian selatan sumata, namun aktivitas seismik secara signfikan dibagian Segmen seulimeum masih belum terjadi。Hal ini diperkirakan berpotensi menghasilkan gempa besar dengan magnitdomenapi ~7.4。Keadaan ini juga mengancam Pulau Weh yang berada di ujung bagian utara dari Segmen seulmeum。Padahal Pulau Weh merupakan kawasan pemukiman，经济专家，pariwisata dan pelabuhan bebas。Penelitian ini mongunakan方法地磁研究;yyitu方法地磁研究;bawah permukaan。Pendekatan方法geoofisika dari方法magnetik dilakukan untuk melengkapi dan memperbaharui temuan padpenelitian -penelitian sebelumnya terkait distribution busi patahan dan perpanjangan Segmen Seulimeum dari GSF。彭甘比兰资料dilakukan sebanyak 204 titik dengan jarak antar titik±500 m di seluruh Pulau Weh menggunakan质子进动磁力计(PPM) GEM 19。资料来源:国际地磁基准场(IGRF)、日异常强度、地磁总强度等。中文翻译:中文翻译:中文翻译:中文翻译:中文翻译:中文翻译:中文翻译:中文翻译:中文翻译:中文翻译:中国大陆的地理分布、地理分布、地理分布、地理分布、地理分布、地理分布、地理分布等。Meskipun demikian, penelitian ini belum mendapatkan informasi terkai geometry dan kedalaman patahan。卡建lanjutan diperlukan untuk melengkapi informasi tersebut。Kata kunci:苏门答腊岛，seullimuem，地磁，威海岛。
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