Adiati, Rima Fitria (2019) Pengaruh PTFE Packaging terhadap Karakteristik Sensor Suhu Berbasis Serat Optik Berstruktur Singlemode-Multimode-Singlemode (SMS). Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sensor suhu berbasis serat optik berstruktur singlemode-multimode-singlemode (SMS) telah digunakan dalam berbagai aplikasi diantaranya monitoring struktur bangunan, transportasi, industri, dan kesehatan. Pada penelitian ini dirancang sebuah packaging dari material Polythetaflouroethylene (PTFE) untuk meningkatkan sensitivitas sensor dan memberikan perlindungan terhadap struktur SMS. PTFE sebagai material polimer yang tidak dipengaruhi interferensi gelombang elektromagnetik dipilih untuk mengantisipasi pengembangan aplikasi sensor serat optik SMS di lingkungan bermedan listrik. Pengaruh pemberian packaging terhadap karakteristik sensor dianalisis menggunakan metode intensity-based interrogation dimana daya output sensor diukur pada rentang 25°C-100°C untuk setiap kenaikan 5°C. Modal propagation analysis (MPA) digunakan untuk menganalisa perambatan cahaya dalam sensor serat optik SMS, dimana koefisien ekspansi termal (CTE) dari serat optik dan material packaging memegang peran penting dalam desain packaging sensor. Simulasi menunjukkan bahwa penggunaan material PTFE menyebabkan pergeseran puncak spektrum panjang gelombang sebesar -223,35 pm/°C dan perubahan intensitas output sebesar -0,105 dB/°C, lebih besar dibandingkan dengan sensor tanpa packaging yaitu 9,85 pm/°C (sensor tanpa packaging) dan 0,011 dB/°C (dengan packaging PTFE). Dalam eksperimen, peningkatan sensitivitas terbaik diperoleh sebesar -0.0557 dB/°C, yaitu 5,41 kali dibandingkan sensor serat optik SMS tanpa packaging dengan penambahan PTFE berukuran 75 x 20 x 1 mm. Pengukuran spektrum transmisi menghasilkan sensitivitas 1324 pm/°C untuk sensor tanpa packaging dan -3946 pm/°C untuk sensor dengan packaging PTFE 1 sisi dengan ketebalan 1 mm.
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Temperature sensor based on singlemode-multimode-singlemode (SMS) fiber structures have been utilized for various applications such as structural health monitoring, transportation, industry, and medical applications. A packaging scheme using Polythetaflouroethylene (PTFE) is designed to increase the sensor sensitivity and protect the SMS fiber from harsh environment. Since PTFE is not influenced by electromagnetic interference, therefore it is possible to apply SMS temperature sensor in electric field areas. The effect of PTFE packaging to the sensor characteristic is measured using intensity-based interrogation method where the power output response is analysed in the range between 25°C - 100°C. A modal propagation analysis (MPA) is used to analyze the light propagation in the SMS fiber structure, where CTE of PTFE and optical fiber is taken into consideration. Simulation shows that PTFE application induces spectrum wavelength shift to the shorter wavelength with sensitivity -223.35 pm/°C. It also results in changes of output power for -0.105 dB/°C, compared to bare sensor, which sensitivity for spectral and intensity modes are consecutively 9.85 pm/°C and 0.011 dB/°C. The experiment shows that sensitivity of -0.0557 dB/°C, 5.41 times higher than bare SMS sensor obtained in 75 x 20 x 1 mm PTFE packaging. Spectrum measurement results in 1324 pm/°C sensitivity for bare sensor and -3946 pm/°C for 1 mm PTFE-packaged sensor.
| Item Type: | Thesis (Masters) |
|---|---|
| Additional Information: | RTF 621.382 75 Adi p-1 2019 3100020083731 |
| Uncontrolled Keywords: | Sensor suhu, serat optik SMS, packaging |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA1800 Fiber Optics T Technology > TS Manufactures > TS195 Packaging |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30101-(S2) Master Thesis |
| Depositing User: | Rima Fitria Adiati |
| Date Deposited: | 05 Nov 2025 09:50 |
| Last Modified: | 05 Nov 2025 09:53 |
| URI: | http://repository.its.ac.id/id/eprint/65738 |
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