Thesis Defense - Ali Gül (MSEE)

Ali Gül– M.Sc. Electrical and Electronics Engineering

Prof. Fatih Uğurdağ – Advisor

Asst. Prof. Mehmet Parlak - Co-advisor

Date: 19.08.2021

Time: 13:00 

Location: This meeting will be held ONLINE. Please send an e-mail to gizem.bakir@ozyegin.edu.tr in order to participate in this defense.

Small form factor PCB-based air coil for CubeSats

Thesis Committee:

Prof. Fatih Uğurdağ, Özyeğin University

Asst. Prof. Kadir Durak, Özyeğin University

Asst. Prof. Ahmet Tekin, Istanbul Technical University

Abstract:

T Space missions using Earth's magnetic field to achieve effective attitude determination and control (orientation) is becoming more and more popular at relatively low altitudes, Low Earth Orbit (LEO). CubeSats (U-class spacecraft) are deployed in LEO and rely on miniaturizing technology without significant performance degradation. They use magnetorquers (magnetic torque generator) within the ADCS (attitude determination and control systems) utilizing the Earth's magnetic field, which is still strong enough to create a functional level of torque with a well-known distribution map around the sphere model. This paper presents a small form factor air coil and magnetorquer design in the form of a PCB (printed circuit board), considering the miniature CubeSat dimensions. Although several studies have shown the torque's effectiveness through simulation-based evaluations, it has not been evaluated in a real environment. In this paper, we propose a test bench for the torque measurement that can be implemented in a real environment using a simple low-loss pendulum analogy due to the lack of air bearing. The measurement results demonstrate the small form factor PCB-based magnetorquer design's effectiveness.

Bio: 

Ali Gül received his B.Sc. degree in Electrical and Communication Engineering from Ege University. In 2013, he joined Electrical and Electronics Engineering, Ozyegin University, Istanbul, Turkey, as a research assistant working under the supervision of Professor Fatih Uğurdağ. His research interests are in general areas of control systems and space applications.