Rancang Bangun Fiber Optic Sensor (FOS) Berbasis Microbending Dengan Pengondisian Sinyal Optik Menjadi Sinyal Elektrik Untuk Pengukuran Beban

Pribadi, Arya Wisnu Teguh (2024) Rancang Bangun Fiber Optic Sensor (FOS) Berbasis Microbending Dengan Pengondisian Sinyal Optik Menjadi Sinyal Elektrik Untuk Pengukuran Beban. Diploma thesis, Institut Teknologi Sepuluh Nopember.

Text 2042201080-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2026. Download (7MB) | Request a copy

Abstract

Pengukuran beban konvensional dapat dilakukan dengan sensor berjenis strain gauge maupun load cell. Sensor konvensional ini memiliki permasalahan yaitu mudah korosi, pengaplikasian yang kompleks, harga yang mahal, terpengaruh interferensi medan magnet, serta area pengukuran yang terbatas. Solusi tepat guna dari permasalahan ini yaitu dengan menggunakan sensor berbasis fiber optik. Penelitian mengenai sensor berbasis fiber optik dalam pengukuran beban telah banyak dilakukan, namun terbatas pada penggunaan peralatan berstandar laboratorium, terutama dalam hal pengkondisian serta pengolahan sinyal optik. Sehingga pengembangan pengkondisian serta pengolahan sinyal optik pada sensor berbasis fiber optik belum banyak dilakukan. Oleh karena itu, dilakukan penelitian tugas akhir dengan judul “Rancang Bangun Fiber Optic Sensor (FOS) berbasis Microbending dengan Pengkondisian Sinyal Optik menjadi Sinyal Elektrik untuk Pengukuran Beban”. Dalam penelitian ini digunakan metode microbending yang dihasilkan oleh sebuah deformer berbahan dasar polylactic acids (PLA), dimanufaktur menggunakan 3D printing dengan area pengukuran sebesar 22 cm × 25 cm dan jarak antar lengkungan sebesar 2 mm. Pengkondisian sinyal optik dilakukan dengan menggunakan Op-amp terkonfigurasi sebagai transimpendance amplifier. Penelitian ini menghasilkan rancangan dan prototipe, FOS berbasis microbending untuk pengukuran beban dengan akurasi sebesar 86.36% dan nilai error sebesar 13.63%. Didapatkan temuan berupa kurangnya desain deformer, pembacaan ADC yang berfluktuatif serta pengaruh temperatur.
========================================================================================================================
Conventional load measurement usually uses a strain gauge-type sensor or a load cell. These conventional load sensors have several disadvantages, such as easily corroded, complex installation, high cost, prone to magnetic field, and limited measurement area. Meanwhile, fiber optic-based sensor can cover those problems. There is a lot of research about fiber optic-based sensors for load measurement, conversely it is limited to the usage of laboratory standard tools and devices, especially for signal conditioning and signal processing parts. The development of optical signal conditioning and processing in fiber optic-based sensors has not been carried out much. Due to those problem, the final project research was carried out with the title "Design Of Fiber Optic Sensor (FOS) based on Microbending using Optic Signal to Electric Signal Conditioning for Load Measurement". This research uses a microbending method, which is caused by a deformer that is manufactured using 3D printing and polylactic acids (PLA) material. This deformer has a size of 22 cm × 25 cm and 2 mm of mechanical periodicity. Optic signal conditioning uses an op-amp which is configured as a transimpendance amplifier. This research have produce a designs and prototypes of FOS for microbending-based load measurements with the accuracy of 86.36% and error of 13.63%. There are some problems that found in this research, there are deformer design flaw, ADC output fluctuates and varies by temperature.

Item Type:	Thesis (Diploma)
Uncontrolled Keywords:	Fiber Optic Sensor, Microbending, Deformer, Transimpendance Amplifier, Pengukuran Beban, Photodioda, Pengondisian Sinyal, Measurement, Photodiode, Signal Conditioning.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA1800 Fiber Optics
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Arya Wisnu Teguh Pribadi
Date Deposited:	08 Aug 2024 05:23
Last Modified:	08 Aug 2024 05:23
URI:	http://repository.its.ac.id/id/eprint/111698

Actions (login required)

View Item