Project Number: 11565 ITT Andrew Bishop Matthew Manelis Electrical Engineer Mechanical Engineer Ben Geiger Nurkanat Suttibayev Katherine Hall Electrical Engineer Industrial Engineer Mechanical Engineer The primary goal of the project is to deliver a device FEA Finite Element Analysis that redirects beams with high precision, FOS Factor of Safety accuracy, and speed using a mirror. The customer, FSM Fast Steering Mirror ITT Geospatial Systems, will use the product on Light Detection and Ranging satellites and other aircrafts for pointing lasers or PID Proportional Integral Derivative tracking targets. PCB Printed Circuit Board RIT Rochester Institute of Technology The mirrors used in the system are interchangeable. Vdc Direct current voltage However, a 3-inch round mirror is to be used primarily in the final assembly by ITT. This waffle mirror is INTRODUCTION specifically designed to be extremely light in weight and stable in structure, and is provided by the The prototype proposed is a beam steering device customer. This mirror rests in an elevated horizontal using a rapidly slewed mirror. At this time, a number position by an aluminum dowel rod with a flexure of similar optical systems are currently available on portion that allows for slight movement of the mirror the market by suppliers such as Optics in Motion and without material failure. Movement of the mirror is Newport. The FSMs are primarily much smaller in achieved by placing four current driven force actuators size (one inch mirror on average), are not designed to underneath the mirror. There are two axes of motion perform in a vacuum. They are also associated with an with a range of 5 degrees on each axis. Capacitive exorbitant cost vary on technical specifications. In position sensors are each axis for proper feedback. fact, a system that closely matches this project’s target specifications is offered for $15,000. [1] The main Through proper design, assembly and testing, this intention of this project is to build a system that can lightweight mirror pointing assembly will meet as compete with or outperform similar systems on the many of the required performance specifications as market while maintaining a budget of $2,000. The possible. final model will have optimal functioning capacity and will meet preferably all of the high performance parameters specified by ITT. Aerospace applications include optical sensing of scattered light wherein a variety of parameters of interest can be measured from very far distances with this technology such as temperature, pressure, position, or vibration. Rapid motion of the mirror is
Project Number: 11565 ITT Andrew Bishop Electrical Engineer Matthew Manelis Mechanical Engineer Ben Geiger Electrical Engineer Nurkanat Suttibayev Industrial Engineer Katherine Hall Mechanical Engineer The primary goal of the project is to deliver a device that redirects beams with high precision, accuracy, and speed using a mirror. The customer, ITT Geospatial Systems, will use the product on satellites and other aircrafts for pointing lasers or tracking targets. The mirrors used in the system are interchangeable. However, a 3-inch round mirror is to be used primarily in the final assembly by ITT. This waffle mirror is specifically designed to be extremely light in weight and stable in structure, and is provided by the customer. This mirror rests in an elevated horizontal position by an aluminum dowel rod with a flexure portion that allows for slight movement of the mirror without material failure. Movement of the mirror is achieved by placing four current driven force actuators underneath the mirror. There are two axes of motion with a range of 5 degrees on each axis. Capacitive position sensors are each axis for proper feedback. Through proper design, assembly and testing, this lightweight mirror pointing assembly will meet as many of the required performance specifications as possible. FEA Finite Element Analysis FOS Factor of Safety FSM Fast Steering Mirror Light Detection and Ranging PID Proportional Integral Derivative PCB Printed Circuit Board RIT Rochester Institute of Technology Vdc Direct current voltage INTRODUCTION The prototype proposed is a beam steering device using a rapidly slewed mirror. At this time, a number of similar optical systems are currently available on the market by suppliers such as Optics in Motion and Newport. The FSMs are primarily much smaller in size (one inch mirror on average), are not designed to perform in a vacuum. They are also associated with an exorbitant cost vary on technical specifications. In fact, a system that closely matches this project’s target specifications is offered for $15,000. [1] The main intention of this project is to build a system that can compete with or outperform similar systems on the market while maintaining a budget of $2,000. The final model will have optimal functioning capacity and will meet preferably all of the high performance parameters specified by ITT. Aerospace applications include optical sensing of scattered light wherein a variety of parameters of interest can be measured from very far distances with this technology such as temperature, pressure, position, or vibration. Rapid motion of the mirror is
P11565_ITT_Mirror.docx