Fiber Optik Berstruktur Singlemode-Multimodesinglemode (Sms) U-Bent Sebagai Sensor Alkohol

Patrialova, Sefi Novendra (2016) Fiber Optik Berstruktur Singlemode-Multimodesinglemode (Sms) U-Bent Sebagai Sensor Alkohol. Masters thesis, Institut Teknologi Sepuluh Nopember Surabaya.

[img]
Preview
Text
2414201007-Master_Thesis.pdf

Download (1MB) | Preview

Abstract

Telah diusulkan rancang bangun sebuah sensor kadar alkohol berbasis fiber optik hetero-struktur. Struktur sensing-probe yang digunakan dalam penelitian ini adalah sambungan singlemode-multimode-singlemode (SMS) dan dibengkokkan menyerupai huruf U, yang selanjutnya disebut dengan u-bent. Struktur SMS dipilih untuk memperoleh sensitivitas yang tinggi. Penelitian ini memanfaatkan efek makrobending dan prinsip multimode interference dimana dilakukan rekayasa medium cladding dengan memvariasikan larutan alkohol dari 0% - 5%. Pengujian performansi sensor dilakukan dengan mengukur daya keluaran sensor akibat adanya pengaruh dari parameter panjang MMF-section, diameter lengkungan dan konsentrasi alkohol yang digunakan. Cahaya infrared (1310 nm) ditransmisikan melalui fiber optik SMS u-bent yang medium cladding-nya telah dimodifikasi oleh variasi kadar alkohol. Adanya variasi kadar alkohol menyebabkan karakteristik daya yang ditransmisikan berubah. Dari hasil pengujian sensor secara eksperimen, sensor fiber optik SMS u-bent dengan diameter lengkungan 50 mm dan variasi panjang MMF sebesar 63 mm memiliki kinerja yang terbaik ditinjau dari sensitivitas tertinggi yaitu 3.38 dB/% ============================================================================================== An alcohol sensor based on fiber optic hetero-structured has been proposed. The structure of sensing probe is Singlemode-Multimode-Singlemode (SMS) which has been bent into U shaped, and soon called as SMS u-bent. SMS structured is used to develop higher sensitivity of sensor. This research utilize the macrobending effect and multimode interference principle by varying alcohol concentration from 0% - 5% as the modified cladding. The performance test of the sensor has been done by measuring power output sensor. The value of power output sensor is affected by the lenght of MMF-section, bending diameter and alcohol concentration. An infrared (1310 nm) has been excited through fiber optic SMS ubent which has a modified cladding. The various alcohol concentrations cause the characteristic of transmited power changed. According to the result of sensor testing experiment, SMS u-bent sensor with 63 mm MMF lenght and 50 mm bending diameter has the highest sensitivity of 3.38 dB/%

Item Type: Thesis (Masters)
Additional Information: RTF 681.25 Pat f
Uncontrolled Keywords: fiber optik, sensor, alkohol, singlemode-multimode-singlemode, u-bent, multimode interference, makrobending
Subjects: Q Science > QC Physics > QC448 Fiber optics.
T Technology > TA Engineering (General). Civil engineering (General) > TA1573 Detectors. Sensors
Divisions: Faculty of Industrial Technology > Physics Engineering > 30101-(S2) Master Thesis
Depositing User: EKO BUDI RAHARJO
Date Deposited: 03 Sep 2020 03:16
Last Modified: 03 Sep 2020 03:16
URI: http://repository.its.ac.id/id/eprint/81738

Actions (login required)

View Item View Item