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
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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.
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Ali Yunus Rohedi, A. Y. R., Rizqi Nur Ainun, R. N. A., Iim Fatimah, I. F., Nurrisma Puspitasari, N. P., Sudarsono, S., & Gatut Yudoyono, G. Y. (2025). 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. Jurnal Fisika Dan Aplikasinya, 20(2). https://doi.org/10.12962/j24604682.v20i2.19026
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