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Sadang Husain
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INDONESIA
Jurnal Fisika FLUX
ISSN : 1829796X     EISSN : 25411713     DOI : -
Core Subject : Science, Education,
Jurnal Fisika FLUX is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of physics including applied physics, which includes: physics instrumentation and computation, biophysics, geophysics, physics materials, theoretical physics, and physics education. Journal use single peer reviewed to publish. This journal is published by Universitas Lambung Mangkurat Press. ISSN 1829-796X (print) and ISSN 2541-1713 (online) Jurnal Fisika FLUX is published twice a year. Articles will be peer reviewed first. Once ready to be published immediately on the current edition.
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Articles 570 Documents
Pembuatan Sistem Monitoring Temperatur, pH dan Salinitas Tambak Ikan Secara Nirkabel Arfan Eko Fahrudin; Said Ja'far Shadiq; Ade Agung Harnawan
Jurnal Fisika FLUX Vol 1, No 1 (2019): Jurnal Fisika Flux Edisi Khusus Januari 2019
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2072.17 KB) | DOI: 10.20527/flux.v1i1.6156

Abstract

− The quality of water hold on important rule in the field of fisheries, especially in cultivation activities. Parameters of water quality are often observed such as temperature, pH, salinity, and others. The influence of water quality on cultivation activity is very important therefore supervision of water quality parameters is absolute done by cultivators. This research  had created the quality of water monitoring system in fishponds wirelessly. The system consist of the transmitter that integrated with LM35 sensor, pH meter kit sensor and conductivity sensor as measurer of water quality, and the receiver receive datum transmitted wirelessly with nRF24L01 module a long 5 meters distance from transmitter. The receiver equipped with an interface with PC which can save data measurement automatically to Microsoft Excel. The results of the validation of the measurement instrument obtained  average of error relative to measurement were 0.01 0C for temperature, 0.005 for pH and 0.008 ppt for salinity. In summary, the measurement of water quality in surface water fishponds of temperature is 29oC until 38oC, pH is 8,6 until 11,9 and salinity is 12 until 21 ppt.
Identifikasi Akuifer Daerah Pallantikang Kabupaten Jeneponto dengan Metode Geolistrik Aryadi Nurfalaq; Alfian Nawir; Rahma Hi. Manrulu; Emi Prasetyawati Umar
Jurnal Fisika FLUX Vol 15, No 2 (2018): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (916.965 KB) | DOI: 10.20527/flux.v15i2.5158

Abstract

Penelitian ini bertujuan untuk mengidentifikasi akuifer air tanah daerah Pallantikang serta memetakan sebaran potensi air tanahnya.Metode yang digunakan adalah metode geolistrik tahanan jenis konfigurasi Schlumberger dan pengukuran muka air tanah sumur. Berdasarkan pembahasan yang telah dilakukan maka akuifer air tanah Desa Pallantikang diperkirakan berasal dari batuan sedimen laut dengan nilai tahanan jenis 0,0193 Ohm.m – 70,19 Ohm.m. Akuifer ini dapat dijumpai pada kedalaman 1 m hingga 99 m sehingga Desa Pallantikang memiliki potensi air tanah yang besar.
Prototipe Penentu Kadar Karet Kering (K3) Lateks (Hevea Brasiliensis) Menggunakan Metode Kapasitif Berbasis Mikrokontroler ATMega8535 Ade Agung Harnawan; Mawar Resty Anggraini; Iwan Sugriwan
Jurnal Fisika FLUX Vol 1, No 1 (2019): Jurnal Fisika Flux Edisi Khusus Januari 2019
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1126.653 KB) | DOI: 10.20527/flux.v1i1.6151

Abstract

The latex K3 determinant prototype using the ATMEGA8535 microcontroller based capacitive method was completed . K3 measuring system is arranged in several systems, there are parallel plate capacitive sensors, multivibrator, frequency to voltage converter, non inverting amplifier, ATMega8535 microcontroller module and 16x2 character LCD. The value of the latex capacitance is converted into a frequency by a multivibrator, then the frequency is converted to voltage and connected to the microcontroller to be processed and displayed the K3 value of latex on the LCD. The voltage characterization processes with a K3 value produces a K3 characteristic equation = - 19.996v + 54,831. These equations are processed in the BASCOM AVR program which is embedded in the microcontroller. The determination of K3 is used capacitive sensor which functions to read changes in the dielectric constant of latex , which has dimensions of 2.5 x 2.5cm with a distance between pieces of 0.6cm. In testing, the prototype can determine the value of K3 from 18% to 28% and the difference in K3 values from 0.3% to 1.2% compared to industrial measurements.
Sintesis dan Karakterisasi Silicon Carbide (SiC) dari Sekam Padi Menggunakan Metode Reduksi Magnesiotermik Ahmad Sofyan Sulaeman; Sugianto Arjo; Akhiruddin Maddu
Jurnal Fisika FLUX Vol 1, No 1 (2019): Jurnal Fisika Flux Edisi Khusus Januari 2019
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1175.202 KB) | DOI: 10.20527/flux.v1i1.6146

Abstract

Silicon Carbide (SiC) merupakan material keramik non-oksida yang memiliki tingkat kekerasan, titik leleh, dan konduktivitas termal yang tinggi. SiC dapat disintesis menggunakan prekursor silika (SiO2) dan karbon (C) dengan memanfaatkan SiO2 sebagai sumber silikon (Si). SiC telah disintesis dari sekam padimenggunakan prekursor SiO2 dan C dengan metode reduksi magnesiotermik. Sintesis SiC dilakukan dengan mencampurkan SiO2 dan C pada perbandingan rasio 1:3, kemudian diberi penambahan magnesium (Mg) dengan variasi massa dari 1,0 g, 1,5 g, dan 2,0 g. Selanjutnya, semua sampel dipanaskan dalam furnace pada temperatur 600 C selama 3 jam. Fase terbentuknya SiC diindikasikan dengan warna fisik pada setiap sampel yang berubah dari abu-abu menjadi putih kehijauan. Selanjutnya serbuk SiC dikarakterisasi menggunakan fourier transform infrared (FTIR) untuk mengetahui gugus fungsi dan X-Ray Diffractometer (XRD) untuk mengetahui derajat kristalinitas, sudut difraksi 2 , dan jarak antar kisi (d). Hasil karakterisasi FTIR menunjukkan adanya ikatan Si–C pada bilangan gelombang  786,89 – 941,19 cm-1. SiC yang diperoleh pada semua sampel memiliki struktur kubik (β-phase) atau dapat disebut β–SiC dengan karakteristik dhkl (111) dan parameter kisi pada kisaran 0,43 nm berdasarkan analisa menggunakan XRD. Penambahan 1 g Mg menghasilkan SiC yang terbaik dengan puncak intensitas difraksi 54 a.u pada sudut 36,04 . Semakin tinggi penambahan Mg pada proses sintesis menyebabkan penurunan intensitas, derajat kristalinitas, dan memperbesar ukuran kristal β–SiC. β–SiC yang disintesis dari sekam padi dengan temperatur rendah ini dapat diaplikasikan sebagai material keramik. Namun, diperlukan karakterisasi lebih lanjut menggunakan thermogravimetrical analysis (TGA) untuk mengetahui titik leleh serbuk SiC.
Fabrikasi Bahan Penyerap Gelombang Elektromagnetik Berbasis CuC Hendri Hendri; Bualkar Abdullah; Dahlang Tahir
Jurnal Fisika FLUX Vol 15, No 2 (2018): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1194.057 KB) | DOI: 10.20527/flux.v15i2.4903

Abstract

Fabrikasi bahan penyerap gelombang elektromagnetik berbasis CuC telah dilakukan. Tembaga Karbon (CuC) diolah dengan metode kompaksi/pemadatan, karakterisasi dilakukan dengan menggunakan XRD, FTIR dan VNA. Penyerap gelombang elektromagnetik (reflection loss (RL)) diperoleh pada rentang -17,73 dB hingga -24,94 dB. Nilai RL dipengaruhi oleh konsentrasi karbon aktif (AC). Spectrum RL terbaik diperoleh pada frekuensi 4 GHz – 5 GHz.
Pengaruh Variasi Arus Pengisian Pengosongan Muatan Pada Model Baterai Lead Acid Terhadap Perubahan Efisiensi Energi Kurriawan Budi Pranata; Muhammad Priyono Tri Sulistyanto; Muhammad Ghufron; Mukhammad Yusmawanto
Jurnal Fisika FLUX Vol 16, No 1 (2019): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (690.008 KB) | DOI: 10.20527/flux.v16i1.5311

Abstract

This research aims to determine the energy efficiency of lead acid batteries after testing the charge-discharge process with a constant current method. Charge-discharge current variations of 0.3 A, 0.5 A, and 0.6 A. The performance voltage range when the charging process has a value in comparison with the charging current. The greater the charging electric current can change the voltage range of the greater performance. Conversely, at the discharge process. The greater the discharge electric current can change the performance voltage range the smaller. Meanwhile, in the performance voltage range the discharge process is lower if the discharge flow gets bigger. Based on the results of the charge-discharge process test, it can be determined the energy efficiency values of the current variation of 0.3 A, 0.5 A, and 0.6 A, which are 76.32%, 76.06% and 91.33%, respectively.
Penentuan Letak Liang Gua Batu Tunggal Menggunakan Metode Geolistrik Konfigurasi Wenner di Desa Tegalrejo Kotabaru Dwi Asmaul Husna; Sri Cahyo Wahyono; Simon Sadok Siregar
Jurnal Fisika FLUX Vol 16, No 1 (2019): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (643.631 KB) | DOI: 10.20527/flux.v16i1.4800

Abstract

Kotabaru Regency has a cast area with an area of 1.777,6303 km2 with a process of dissolving rocks of carbonate that extends to the coast of the Southeast part of the island of Borneo. The study sites are located in the Batu Tunggal cave at coordinates 3o 11 '41.8 "S and 115o 58' 32.9" E which aims to determine the location of the burrow, diameter, and extent of the cave that is still buried using the Wenner Geoelectric Method configuration. Arrange electrode C1 P1, P2 C2 with a distance of 5-meter electrode 3 paths. The results of the measurements on track 1 were found to be the first hole with an average resistivity value of 295,046 Wm at depths of 1.25 to 17.3 meters with an a area of 237.5 m2, the second hole in depth 13.4 - 17.3 meters with a area of 66 m2, the third hole in depth, 9.94 - 17.3 meters with an a area of 55 m2. The second track found the burrow with an average resistivity value of 140.591 Wm in depth of 9.94 - 17.3 meters with an a area of 114 m2. The third track found the burrow with an average resistivity value of 27.651 Wm in depth 14.4 - 17.3 meters with an a area of 55 m2. The cave lane on track 3 is connected to the first hole of track 1 and connects with the hole in part 2.Cave Hole, Geoelectric, Gua Batu Tunggal, Karst
Pemanfaatan Sistem Alat Ukur Kadar Gas Metana (Ch4), Suhu dan Kelembaban pada Perkebunan Kelapa Sawit di Lahan Gambut Iwan Sugriwan; Adi Saputra Ramdani; Arfan Eko Fahrudin; Suryajaya Suryajaya
Jurnal Fisika FLUX Vol 1, No 1 (2019): Jurnal Fisika Flux Edisi Khusus Januari 2019
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1825.877 KB) | DOI: 10.20527/flux.v1i1.6157

Abstract

Alat ukur kadar gas metana (CH4), suhu dan kelembaban telah dilakukan. Alat ukur ini dapat diaplikasikan di perkebunan kelapa sawit di lahan gambut. Alat ukur ini terdiri dari sensor TGS2611, sensor SHT11, catu daya, voltage follower, mikrokontroler ATMega8535 dan LCD karakter 16x2. Tegangan keluaran sensor TGS2611 dikondisikan dengan rangkaian voltage follower kemudian dihubungkan dengan ADC internal mikrokontroler ATMega8535. Persamaan karakteristik sensor TGS2611 ditentukan dengan cara mengambil beberapa data kadar gas metana dan tegangan keluaran sensor pada datasheet sensor TGS2611 kemudian dibuat grafik persamaan karakteristiknya, sehingga diperoleh persamaan karakteristik sensor V=0,544ln(x)-2,113, dengan V adalah tegangan keluaran sensor dan x adalah kadar gas metana (ppm). Sensor SHT11 merupakan sensor digital yang sudah terkalibrasi pabrik, sehingga sensor SHT11 bisa langsung dihubungkan dengan catu daya, lalu data dari sensor dihubungkan ke mikrokontroler ATMega8535. Data hasil pengukuran ditampilkan pada LCD karakter 16x2 dan ditampilkan pada komputer dengan program yang telah dibuat menggunakan Delphi 7.0. Data hasil pengukuran juga tersimpan dalam database. Hasil pengukuran yang dilakukan selama 2 hari dengan durasi pengukuran satu setengah jam pada hari pertama dan 2 jam pada hari kedua menyatakan bahwa keberadaan gas metana tidak terdeteksi di kebun kelapa sawit yang ditanam di lahan gambut. Pada hari pertama pengukuran nilai suhu udara berkisar antara 28,8 0C – 30 0C dan nilai kelembaban udara berkisar 87,6% - 89,6%. Pada hari kedua pengukuran nilai suhu udara berkisar antara 26,6 0C - 33,1 0C dan nilai kelembaban udara berkisar 85,1% - 88,4%.
Investigasi Intrusi Air Asin di Kawasan Prospek Bijih Besi Pesisir Nusawungu Kabupaten Cilacap Jawa Tengah Berdasarkan Profil Resistivitas-2D Sehah Sehah; Zaroh Irayani; Sukma Sewiji
Jurnal Fisika FLUX Vol 15, No 2 (2018): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.232 KB) | DOI: 10.20527/flux.v15i2.5530

Abstract

ABSTRACT−Investigation of saltwater intrusion in Nusawungu Coastal area of Cilacap Regency based on the 2D-resistivity data has been done in April – Juni 2018. The resistivity data acquisition has been carried out using Wenner's configuration on four locations covering of the NWT-01, NWT-02, NWT-03, and NWT-04 with a length as 200 meters. The obtained result is the 2D-resistivity profile of subsurface rocks for each trajectory with a depth of about 30 meters. The rock resistivity values which obtained for each trajectory consists of the NWT-01 is 2.30 – 103.00 Ωm; the NWT-02 is 3.65 – 54.30 Ωm; the NWT-03 is 0.96 – 43.20 Ωm; and the NWT-04 is 2.33 – 70.80 Ωm. Based on the interpretation results, the deep aquifer in each trajectory with a resistivity value of 0.96 - 6.81 Ωm are estimated to be intruded by saltwater, while the shallow aquifers have not been significantly intruded by saltwater. Based on the testing results of the electrical conductivity (DHL) of several water samples taken from some wells around the NWT-01 to NWT-04 trajectory, it is known that all of the water is freshwater. Some well water samples have a rather high electrical conductivity value, such as the well A on the NWT-01 with a value of 740.0 μSi/cm and the well C on the NWT-03 with a value of 894.67 μSi/cm. This is thought to be due to the relatively high salt mineral content in the aquifer rocks.
Pembuatan Alat Ukur Distribusi Bunyi dalam Ruang, secara Nirkabel Berbasis Mikrokontroler Deanu Haratinu Tu’u; Iwan Sugriwan; Arfan Eko Fahrudin
Jurnal Fisika FLUX Vol 1, No 1 (2019): Jurnal Fisika Flux Edisi Khusus Januari 2019
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1041.429 KB) | DOI: 10.20527/flux.v1i1.6152

Abstract

Sound distribution and background noise, is an important aspect in the making of study-purposed room. Properly distributed sound would ensure everyone in the room to hear the same quality of sound. Good sound quality is defined as a sound that did not diminish its character (sound intensity and sound clarity) significantly to its sound source. In this research, has been fabricated an in-room sound distribution measuring instrument, based on the Arduino microcontroller that equipped with nRF24L01 to be wirelessly functionated. The fabricated measuring instrument consist of 4 transmitter devices and 2 receiver devices. The transmitter devices is an Arduino Pro Mini microcontroller that equipped with nRF24L01 and a sound sensor. The receiver devices is an Arduino Nano microcontroller equipped with nRF24L01, that connected to a PC, and an Arduino Pro Mini microcontroller equipped with nRF24L01 that connected to a speaker. The fabricated measuring instrument equipped with a Python 2.7-based acquisition software to acquire data in real time and store it in CSV (Comma Separated Value) format. Test was carried out to the transmitter devices that equipped with a sound sensor and the receiver device that connected to a speaker. The transmitter devices was compared with a standard sound level meter, and showed 0,65% - 1,24% of error percentage. The test made to receiver device showed that sound intensity of 100 dB could only be achieved with frequency of 2000 Hz and 3000 Hz. On  the measurement of sound distribution, the primary data of Einstein Hall sound distribution has been obtained, with 16 sound level measuring point, 7 variations of sound source position, and 5 variations of sound source frequency.The background noise measurement of Einstein Hall of the FMIPA ULM, showed the value varied between 57 dB – 60,56 dB.

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