Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Low-Cost Reaction Wheel Design For Cubesat Applications, Nicholas J. Bonafede Jr.
Low-Cost Reaction Wheel Design For Cubesat Applications, Nicholas J. Bonafede Jr.
Master's Theses
As science instruments on CubeSats become more sensitive to the attitude of the spacecraft, better methods must be employed to provide the accuracy needed to complete the planned mission. While systems that provide the accuracy required are available commercially, these solutions are not cost-effective, do not allow the design to be tailored to a specific mission, and most importantly, do not give students hand-on experience with attitude control actuators. This thesis documents the design, modeling, and simulation of a low-cost, student-fabricated, reaction wheel system for use in 3U CubeSat satellites. The entire design process for the development of this reaction …
The Optimum Design Of A Vacuum-Compatible Manipulator To Calibrate Space Based Ultraviolet Imagers, Jason L. Grillo
The Optimum Design Of A Vacuum-Compatible Manipulator To Calibrate Space Based Ultraviolet Imagers, Jason L. Grillo
Master's Theses
Recent discoveries in geospace science have necessitated the design of compact UV imaging instruments to make space-based observations from multiple vantage points. The miniaturized ultraviolet imager (MUVI) instrument from the Space Sciences Laboratory (SSL) at UC Berkeley is under development to facilitate such discoveries on a wider scale. This thesis documents the design, integration, and characterization of a vacuum compatible manipulator to calibrate the MUVI instrument inside the UV thermal vacuum chamber at SSL. Precision linear and rotation stages were implemented with custom mounting plates to achieve four degrees of freedom. Optical components were installed to imitate the MUVI instrument …