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All Journal JFA (Jurnal Fisika dan Aplikasinya)
Sudarsono Sudarsono
Department of Physics, Institut Teknologi Sepuluh Nopember, Kampus ITS-Sukolilo Surabaya
Physics

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Macrobending Multimode Plastic Optical Fiber Coated with PANI-PVA composite as a pH sensor: Ali Yunus Rohedi, Rizqi Nur Ainun, Iim Fatimah, Nurrisma Puspitasari, S Sudarsono, Gatut Yudoyono Ali Yunus Rohedi Ali Yunus Rohedi; Rizqi Nur Ainun Rizqi Nur Ainun; Iim Fatimah Iim Fatimah; Nurrisma Puspitasari Nurrisma Puspitasari; Sudarsono Sudarsono; Gatut Yudoyono Gatut Yudoyono
Jurnal Fisika dan Aplikasinya Vol 20 No 2 (2024): June 2024 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v20i2.19026

Abstract

The pH measurement is essential in medicine, industry, and research, and each requires measuring instruments with different sensitivities. Measuring the pH of a solution, in principle, measures hydrogen ions in the solution. In this study, a pH sensor was designed and fabricated using macrobending multimode optical fiber. The optical fiber cladding was peeled off and replaced with a PANI-PVA (polyaniline-polyvinyl alcohol) composite layer, bent with a 2.0 and 2.5 cm diameter. The results showed that the pH sensor could measure the solution's pH linearly in the range of pH = 2 to 8.
Fabrikasi Kanal Mikro pada Substrat Akrilik menggunakan Laser Cutting CO2: Sudarsono, Gatut Yudoyono, Faridawati, Hasto Sunarno, Nurrisma Puspitasari, Yono Hadi Pramono Sudarsono Sudarsono; Gatut Yudoyono Gatut Yudoyono; Faridawati Faridawati; Hasto Sunarno Hasto Sunarno; Nurrisma Puspitasari Nurrisma Puspitasari; Yono Hadi Pramono Yono Hadi Pramono
Jurnal Fisika dan Aplikasinya Vol 14 No 3 (2018): October 2018 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v14i3.3867

Abstract

CO2 laser cutting machine is a tool used in working on cutting and engraving some materials such as polymers, glass, paper, fabric and some non-metallic materials. CO2 laser cutting machines are widely used to make indoor and outdoor decoration such as nameplates in several shops, offices, hotels, companies, exhibition halls, and some accessories such as trophies, key chains and some other accessories. In this research will be studied about the influence of CO2 laser cutting speed on the shape, width, and depth in making a kanal mikro optical waveguide on acrylic substrate. The fabrication results were observed using an optical microscope as well as width and depth calculations usingmicrometer shifts. Fromthe results of observation and analysis of fabrication, the results showed that the higher the CO2 laser speed the shallower the depth of the resulting. In this study the power used 2.4W and produced kanal mikro with the smallest depth of 190.91 µm with laser speed 100 mm/s and biggest 604.17 µm with laser speed 50 mm/s. From the results of this study recommended a good speed to make kanal mikro as an optical waveguide application is 95 mm/s and 100 mm/s with a power of 2.4 W.
Co-Authors Ali Yunus Rohedi Ali Yunus Rohedi Faridawati Faridawati Gatut Yudoyono Gatut Yudoyono Hasto Sunarno Hasto Sunarno Iim Fatimah Iim Fatimah Nurrisma Puspitasari Nurrisma Puspitasari Rizqi Nur Ainun Rizqi Nur Ainun Yono Hadi Pramono Yono Hadi Pramono