# Title Team Members TA Documents Sponsor
31 Enhanced Beverage Coaster
Christina Choi
Harrison Hsieh
Hung-Jui Chang
Nicholas Ratajczyk other
We are want to design a beverage coaster that has the ability to detect when drinks are low and capture data on drinking habits. We believe our project will be useful for restaurant workers because they will be able to spot near empty glasses more easily (especially in a dark environment), and they will be able to track how much of each beverage is usually consumed by customers.

Our enhanced beverage coaster will detect the amount of beverage left in the glass by using a pressure/weight sensor and will light up an LED to a certain color to make it easier to restaurant workers to spot near empty glasses. Also, we will be tracking the amount of beverage consumed by the customer using the pressure/weight sensor. Our coaster will also have a wireless chip that will relay data to a central location (probably a phone or computer for this prototype). We plan on probably using a coin cell battery to power out project.

We believe this project is challenging because it needs to be not too expensive, low power, and have the ability to transfer data wirelessly. Also, detecting the decrease in the amount of beverage in a glass can be tricky due to the glass being picked up in uncertain intervals by the customer.

-Pressure sensor working
-Able to detect a near empty glass
-Replay amount of beverage drunk by customer somewhere (probably phone)

The Dream:
-All of the above working
-Have a central module to transfer information to
-Able to select type of beverage before serving customer

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.


• 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