Pelapisan PVA/rGO pada Plastic Optical Fiber (POF) sebagai Probe Sensor dengan Metode Dip-coating

Agasta, Tristofani and UNSPECIFIED (2023) Pelapisan PVA/rGO pada Plastic Optical Fiber (POF) sebagai Probe Sensor dengan Metode Dip-coating. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian yang berjudul “Pelapisan PVA/rGO pada Plastic Optical Fiber (POF) sebagai Probe Sensor dengan Metode Dip-coating” bertujuan mengetahui pengaruh perubahan konsentrasi gas Karbon Monoksida (CO) dan temperatur. Prinsip kerja dari sistem sensor ini adalah memanfaatkan proses pemantulan dalam total dan medan evanescent pada serat optik. Probe sensor berbasis serat optik pada penelitian ini dibuat dengan mengganti cladding POF dengan PVA, PVA/rGO-1% dan PVA/rGO-3% pada bagian tengah fiber optik menggunakan metode dip-coating. Perubahan konsentrasi gas CO dan temperatur dideteksi berdasarkan perubahan intensitas cahaya yang diterima oleh fotodetektor. Kalibarasi perubahan konsentrasi gas CO dilakukan dengan menggunakan sensor MQ-7, sedangkan untuk temperatur menggunakan termokopel. Hasil pengujian menunjukkan bahwa probe sensor mengalami penurunan intensitas cahaya terhadap penambahan konsentrasi gas CO dan tempeartur. Probe sensor dengan cladding PVA dan PVA/rGO-1% mampu mendeteksi perubahan konsentrasi gas CO yang cukup signifikan pada rentang sekitar 100 – 500 ppm, sedangkan PVA/rGO-3% pada rentang sekitar 1300-3300 ppm. Sedangkan perubahan temperatur yang mampu dideteksi oleh probe sensor dengan cladding PVA adalah sekitar 40 - 80°C, PVA/rGO-1% sekitar 38-60°C, tetapi pada probe sensor degan cladding PVA/rGO-3% sudah mengalami kerusakan probe sensor. Berdasarkan hasil penelitian ini menunjukkan bahwa bahan PVA/rGO dapat digunakan sebagai material sensor gas CO dan temperatur berbasis prinsip optik menggunakan serat optik plastik.
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The research entitled "PVA/rGO Coating on Plastic Optical Fiber (POF) as a Probe Sensor with Dip-coating Method" aims to determine the effect of changes in Carbon Monoxide (CO) gas concentration and temperature. The principle of this sensor system is to take advantage of the total reflection process and evanescent field on optical fibers. The optical fiber-based sensor probe in this study was made by replacing the POF cladding with PVA, PVA/rGO-1% and PVA/rGO-3% in the middle of the optical fiber using the dip-coating method. Changes in CO gas concentration and temperature were detected based on changes in light intensity received by the photodetector. Calibration of changes in CO gas concentration was carried out using an MQ-7 sensor, while for temperature using a thermocouple. The test results show that the sensor probe experiences a decrease in light intensity towards the addition of CO gas concentration and temperature. Sensor probes with PVA and PVA/rGO-1% cladding were able to detect remarkable changes in CO gas concentration in the range of about 100 - 500 ppm, while PVA/rGO-3% in the range of about 1300-3300 ppm. While the temperature change that can be detected by the sensor probe with PVA cladding is around 40 - 80°C, PVA/rGO-1% is around 38-60°C, but the sensor probe with PVA/rGO-3% cladding has damaged the sensor probe. Based on the results of this study, it shows that PVA/rGO material can be used as a CO gas and temperature sensor material based on optical principles using plastic optical fibers.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Dip-coating, Medan Evanescent, Karbon Monoksida, Sensor, Serat Optik, Dip-coating, Evanescent Field, Carbon Monoxide, Sensor, Optical Fiber
Subjects:	Q Science > QC Physics > QC448 Fiber optics.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Tristofani Agasta
Date Deposited:	27 Nov 2023 03:44
Last Modified:	27 Nov 2023 03:44
URI:	http://repository.its.ac.id/id/eprint/104036

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