Course Overview

COVID-19 Instructions for ECE 445 Senior Design

Hello everyone! As you probably know, in this course you will form teams and propose projects that solve an engineering problem in a unique way. The projects generally involve a device that you will design, build, and demonstrate. We are excited to see what projects you come up with this semester! In the midst of an ever-changing learning environment, we want to encourage you to think, create, design, and build exemplary projects. We want to ensure that your experience in 445 demonstrates your potential as an engineer graduating from the University of Illinois.

This semester we face the challenge of conducting the course during the COVID-19 pandemic. The safety of students and staff is the paramount concern and while steps have been taken to ensure the lab environment is safe, we recognize that some students will be taking the course online only. In addition, we have to be prepared for the possibility that the university could transition to remote learning only before the Thanksgiving break. This has led us to make some changes in the course format and means we all need to do some contingency planning.

We expect that project teams will be a mix of in-person and online-only students and that work on each project will be distributed fairly among the team members. With this in mind, here are a few items that you will need to consider as we enter into this semester.

Filtered Back – Projection Optical Demonstration

Tori Fujinami, Xingchen Hong, Jacob Ramsey

Filtered Back – Projection Optical Demonstration

Featured Project

Project Description

Computed Tomography, often referred to as CT or CAT scans, is a modern technology used for medical imaging. While many people know of this technology, not many people understand how it works. The concepts behind CT scans are theoretical and often hard to visualize. Professor Carney has indicated that a small-scale device for demonstrational purposes will help students gain a more concrete understanding of the technical components behind this device. Using light rather than x-rays, we will design and build a simplified CT device for use as an educational tool.

Design Methodology

We will build a device with three components: a light source, a screen, and a stand to hold the object. After placing an object on the stand and starting the scan, the device will record three projections by rotating either the camera and screen or object. Using the three projections in tandem with an algorithm developed with a graduate student, our device will create a 3D reconstruction of the object.

Hardware

• Motors to rotate camera and screen or object

• Grid of photo sensors built into screen

• Light source

• Power source for each of these components

• Control system for timing between movement, light on, and sensor readings