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IMPLEMENTASI SENSOR FIBER OPTIK DALAM MENGUKUR KUALITAS MINYAK GORENG SAWIT: Kata Kunci: Fiber Optik, Kelapa Sawit, Minyak, Multimode, Sensitivitas. Mutawakkillah, Nainunis; Yantidewi, Meta; Khoiro, Muhimmatul
Inovasi Fisika Indonesia Vol. 13 No. 3 (2024): Vol 13 No 3
Publisher : Prodi Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ifi.v13n3.p95-102

Abstract

AbstrakBanyaknya penggunaan minyak kelapa sawit mengakibatkan kualitas minyak goreng sawit menurunmengakibatkan penyakit-penyakit mematikan. Tujuan penelitian ini adalah menganalisis pengaruh fiber optik multimode dalam mendeteksi kualitas minyak serta menganalisis karakteristik sensor fiber optik dalam mendeteksi kualitas minyak. Sensor fiber optik dibangun dari laser dioda merah 638 nm sebagai sumber cahaya, fiber optik plastik step index dengan jenis multimode, dan fotodioda yang dihubungkan pada Arduino Nano dengan hasil pengukuran berupa tegangan ditampilkan pada LCD. Fiber optik sepanjang 15 cm dikupas pada bagian tengahnya sepanjang 1,5 cm menggunakan metode chemical etching hingga cladding tidak tersisa yang akan digantikan oleh sampel saat proses pengujian. Sampel penelitian ini berupa 5 jenis minyak ber merek S, SC, SV, B, dan C dengan setiap jenis minyak digoreng dengan 3 kali penggorengan. Hasil penelitian ini menunjukkan sensor fiber optik multimode mempunyai pengaruh sebagai sensor deteksi dengan respon pengukuran tegangan berkisar >2500 mV. Jumlah pengulangan pemakaian minyak dengan sensorfiber optik dapat dilihat dari keluaran yang semakin besar atau berbanding lurus. Karakteristik sensor fiber optik dengan menggunakan perhitungan jangkauan kerja, sensitivitas, dan resolusi yang menggunakan rasio dalam perhitungannya. Hasil karakterisasi yang diperoleh jangkauan kerja paling baik dan sensitivitas terbaik pada fiber optik multimode adalah sampel B dengan nilai jangkauan kerja 0,120 sensitivitas sebesar 0,040 /pengulangan sedangkan jangkauan kerja dan sensitivitas paling rendah adalah jenis SC dengan jangkauan kerja bernilai 0,022 sensitivitas 0,007 /pengulangan. Resolusi terbaik yaitu jenis SC bernilai 1,358, untuk yang paling rendah jenis B yang bernilai 0,249.Kata Kunci: Fiber Optik, Kelapa Sawit, Minyak, Multimode, Sensitivitas. AbstractThe large amount of palm oil used causes the quality of palm cooking oil to decline resulting in deadly diseases.The aim of this research is to analyze the effect of multimode fiber optics in detecting oil quality and to analyze the characteristics of fiber optic sensors in detecting oil quality. The fiber optic sensor is built from a 638 nm red diode laser as a light source, step index plastic fiber optics with multimode type, and a photodiode connected to an Arduino Nano with the measurement results in the form of voltage displayed on the LCD. The 15 cm long optical fiber is peeled in the middle 1.5 cm long using the chemical etching method until no cladding remains which will be replaced by the sample during the testing process. The samples for this research were 5 types of oil branded S, SC, SV, B, and C with each type of oil fried in 3 fryers. The results of this research show that the multimode fiber optic sensor has an influence as a detection sensor with a voltage measurement response ranging >2500 mV. The number of repetitions of oil use with a fiber optic sensor can be seen from the output which is getting bigger or is directly proportional. Characteristics of fiber optic sensors using calculations of working range, sensitivity and resolution which use ratios in the calculations. The characterization results obtained by the best working range and the best sensitivity on multimode optical fiber were sampleB with a working range value of 0.120, a sensitivity of 0.040/repetition, while the lowest working range and sensitivity was the SC type with a working range value of 0.022, a sensitivity of 0.007/repetition. The best resolution is type SC with a value of 1.358, while the lowest is type B with a value of 0.249.Keywords: Fiber optic. Oil, Palm, Multimode, Sensitivition
An AHP-Based Priority Selection Method for Capabilities Development: A Case Study of SDN Botok Nisa'ul Fadhilah; Mutawakkillah, Nainunis; Anargiansyah, Muhammad Bagoes; Sari, Lelli Kurnia
Journal of Dedication in Community Vol. 3 No. 1 (2025)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences (FMIPA) Universitas Negeri Surabaya (UNESA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jodic.v3n1.p38-50

Abstract

The critical investment of the future society needed to develop student capabilities for the early stage. Research has contributes considerably to the investigation of necessary student capabilities for improvement. However, previous studies typically focus on proposing a general of capabilities. There is limited knowledge of how a school can identify the necessary of student capabilities and plan the corresponding development program actions. This research aims to determine the capabilities that need to be developed in Botok elementary school use Gap Analysis and Analytical Hierarchy Process (AHP) method. The method supports the analysis of any factors that influence by identify the actual condition, pre-test and post-test assessment of student capabilities in Botok elementary school. The gap analysis results are presented that linguistic and spatial-visual capabilities has excellent category. Meanwhile, the mathematics has good category. This result of gap analysis reinforced by AHP method, that are the eigenvector value of linguistic capabilities (0,20), mathematics capabilities (0,71), and spatial-visual capabilities (0,09). Thus, finding this research shows that the mathematics capabilities are the most important to develop.