Honors Theses
Permanent URI for this collectionhttps://hdl.handle.net/10217/240486
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Item Open Access Teaching model for human eye movement: a multidisciplinary senior design project(Colorado State University. Libraries, 2025) Zito, Michael, author; McGilvray, Kirk, advisor; Brennan-Pierce, Ellen, committee memberThis thesis documents the development of an anatomically accurate teaching model demonstrating human ocular movement. The year-long senior design project, sponsored by Colorado State University, was conducted under the guidance of Dr. Leslie Stone-Roy (Neuroscience) and Dr. Kirk McGilvray (Biomedical and Mechanical Engineering). The model effectively represents the human eyes, oculomotor musculature, and the associated neuronal pathways responsible for eye movement. The project allows for the demonstration of both functional and impaired neural pathways via LED sequencing as well as the respective motor functions for each respective path. Development of the project progressed through multiple design evaluations, prototyping iterations, and testing methods. The final project serves as an educational resource for undergraduate neuroscience curriculum at Colorado State University. This project helped to develop personal engineering skills and principles while also creating an impactful educational tool to enhance the comprehension of complex neuroanatomical concepts.Item Open Access Refining the stars: reducing the Keck Observatory calibration error with a cutting-edge calibration screen(Colorado State University. Libraries, 2025) Solheim, Kennedy, author; Fankell, Doug, advisor; Stansloski, Mitchell, committee memberThe Keck Observatory's telescopes are among the most advanced and productive in the world, enabling groundbreaking astronomical research [4]. However, the current calibration system - consisting of shining projectors onto the uneven dome surface - introduces an error of approximately 30%, impacting observational data and discoveries. This honors thesis details the development of a 1/10th scale prototype - where the full scale would be 12-meters in diameter to fit the 10-meter telescope - for an improved calibration system, designed by an interdisciplinary team including three mechanical engineering students and two electrical engineering students. The goal is to reduce said errors to an initial target of 6% or less. The design process lasts a full academic year, relying on a strong relationship between mechanical and electrical subsystems to achieve precise alignment and innovation. While the mechanical engineering team develops structural aspects, motion mechanisms, mounting mechanisms, and stability, the electrical engineering team establishes control systems, safety mechanisms, lighting aspects, and power distribution systems. The prototype leverages non-conventional solutions developed by a team of engineering students dedicated to learning and simulating real-world operational conditions. This senior design project is a significant step in the Keck Observatory's observational capabilities, allowing this year's team to generate ideas and determine feasibility to pass on to next year's team for further development. By addressing these current limitations of the telescopes, the team's efforts in this project will help the W.M. Keck Observatory remain the leading ground telescope in scientific discovery with more accurate astronomical data in addition to contributing to the improvement of calibration systems as a whole. The outcomes of this project include team collaboration, design methodology, testing, prototyping, and understanding the improvements that can be made with cost and time constraints, providing a foundation for future development of the full-scale system in the years to come.Item Open Access Old Main Bell - senior design project(Colorado State University. Libraries, 2024-12-06) Bushlack, Blake, authorDue to varying age and physical abilities of Alumni from Colorado State University, access to ringing the Old Main Bell was limited, in some cases requiring family members to step in for elderly Alumni. To accommodate these different skill levels of users, a ratchet system was implemented to pre-load the Bell, storing potential energy which will be converted to kinetic energy when the ratchet is released. All of this was done to preserve the historic motion of ringing the Bell while simplifying the task. Additionally, the system can be operated without the ratchet to allow for the user to choose how to ring the Bell and in doing so improve the lifespan of the rope by reducing friction applied to it.Item Open Access Senior design project: test fixture for a lenticular offset composite hinge(Colorado State University. Libraries, 2024) Romanowicz, Kaitlyn, authorMy team and I developed a test method to verify the torque specification of a Lenticular Offset Composite (LOC) hinge. This engineering senior design project was sponsored by Opterus R&D, a company that specializes in deployable spacecraft structures. These hinges are typically mounted in deployable solar array configurations, so research was done to orient to the market demand. A material understanding of the hinge was developed by exploring how high strain composite materials store energy as they deform. After developing this understanding, the previous and current test methods were evaluated to guide my team’s prototype iterations. The final design is a test fixture that improves the user interface when compared to the current method, accommodates a variety of hinge geometries, and mimics the behavior of simulated LOC hinge data. My two main roles throughout the project were to ensure that my team was on track for all deliverables, and machine half of the custom aluminum components for the final product. I gained valuable experience in project management, used many skills that I’ve developed throughout my degree program, and now embody the confidence to start my career as an engineer.