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All Journal International Journal of Electrical and Computer Engineering Jurnal Ilmiah Teknik Elektro
Latifah Sarah Supian
Universiti Pertahanan Nasional Malaysia
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy

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Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR) Nani Fadzlina Naim; Siti Noor Maslizan Sudin; Suzi Seroja Sarnin; Norsuzila Ya'acob; Latifah Sarah Supian
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 3: June 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (860.678 KB) | DOI: 10.11591/ijece.v10i3.pp3158-3165

Abstract

In this paper, the simulation of Fiber Bragg Grating (FBG) as a temperature sensor is conducted. The FBG temperature sensor is designed based on Optical Frequency Domain Reflectometer (OFDR) concept. A continuous wave (CW) laser is used as the optical source and it is transmitted to two FBGs. The two FBGs reflection spectra will produce a beat frequency that can be detected using a Radio Frequency (RF) Spectrum Analyzer. Any temperature change will shift Bragg wavelength, thus produce a shift for the beat frequency. In this work, an FBG with temperature sensitivity 10 pm/˚C is employed. It is found that by using this technique, a high-resolution temperature sensor can be designed with temperature resolution of 0.1˚C.
Penentuan Konstanta PID Sistem Kendali Satelit Sumbu X, Y, dan Z Menggunakan Metode Root Locus Muhammad Bahtiar; Mohammad Aji Saputra; Aditya Dwi Airlangga; Suraduita Mupasanta; Muhammad Mujirudin; Harry Ramza; Latifah Sarah Supian
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 20, Nomor 1, Agustus 2022
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.366 KB) | DOI: 10.25105/jetri.v20i1.13473

Abstract

The sattelite controller can be carried out according to the orbit direction of the x, y and z axes. This control functions by determining the value of the PID constant (Proportional, Integral and Differential) through the Root Locus Method. The purpose of this study is to determine the parameters are needed by PID in controlling the LAPAN A2 Satellite using this Root Locus method. The result of P – constant on the x-axis is 31.7692, the y-axis is 38.4987 and the z-axis is 30.6559. The I – constant generated on the x-axis is 5, the y-axis is 5 and the z-axis is 5. Likewise, the D – constant generated on the x-axis is 47.2755, the y-axis is 70.2532 and the z-axis is 43.9196. All the constant values ​​mentioned are determined based on the lowest steady state error number of 0.12% for the x-axis, 0.10% for the y-axis and 0.12% for the z-axis. The overall value is the optimum system value where the steady state error value is generated from the difference between the settling time value and the steady state value multiplied by 100% with a tolerance limit of <5%.
Design of time division multiplexing/wavelength division multiplexing passive optical network system for high-capacity network Farid Hazwan Azmi; Nani Fadzlina Naim; Norsuzila Ya&#039;acob; Suzi Seroja sarnin; Latifah Sarah Supian
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 4: August 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i4.pp4152-4158

Abstract

This paper presents the design of time division multiplexing-wavelength division multiplexing-passive optical network (TDM-WDM PON). In this design, the current TDM PON is incorporated with the proposed WDM-PON in order to design a high-capacity network with lower loss requirements. The design has been simulated using OptiSystem software. The upstream wavelength for WDM is between 1,530.334 to 1,542.142 nm while for TDM is 1,310 nm. The downstream wavelength for WDM is from 1,569.865 to 1,581.973 nm, while for TDM is 1,490 nm. Based on the result, it is found that the proposed network is capable to support up to 64 customers with a bit rate of 2.5 Gbps.
Co-Authors Aditya Dwi Airlangga Farid Hazwan Azmi Harry Ramza Mohammad Aji Saputra Muhammad Bahtiar Muhammad Mujirudin Nani Fadzlina Naim Norsuzila Ya&#039;acob Siti Noor Maslizan Sudin Suraduita Mupasanta Suzi Seroja Sarnin