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Advanced Magnetic Levitation System for Precision Control of Ferromagnetic Objects

DESCRIPTION

This project aims to create a magnetic levitation system using electromagnets to precisely lift and control a ferromagnetic object. The design includes four electromagnets mounted on an overhead platform, with control achieved via a Cyclone II FPGA. Objectives include achieving 1 cm accuracy in XYZ positioning and controlling orientation within 90 degrees across all axes. The approach involves a comprehensive research and design timeline, considering power limitations, control complexity, and potential risks. Extensions such as LCD displays and wireless communication will enhance user interaction.

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Advanced Magnetic Levitation System for Precision Control of Ferromagnetic Objects

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  1. Team Lifted Andrew Cober Dan Crowe Sujan Gautam Anthony Schubert Ryan Yeash

  2. Magnetic Levitation • Use electromagnets to lift and control a ferromagnetic object • Control xyz position • Control yaw, pitch, and roll of specialized object

  3. Goals • Effectively control the object with 1cm accuracy • XYZ control • Control orientation within 90 degrees in all axes

  4. Design • Four electromagnets mounted on an overhead platform • Cyclone II FPGA used to control the current to the electromagnets • Control based on IR distance sensing of the object

  5. Specifics • DC buck converter used to control current flow to electromagnets • Software control loop used to connect IR sensors and magnets via converters • User controls object position with buttons • Wood apparatus initially, convert to aluminum at a later date

  6. Approach • Breakup design as much as possible • Hardware/Power • Construction of apparatus, PCB, and developing reliable power converters • Control • Mathematical control algorithm • Software • Build framework that allows control specifics to be implemented later

  7. Functional Block Diagram

  8. Hardware Block Diagram

  9. NiosII Softcore

  10. Software Flow Diagram

  11. Cost Estimate

  12. Division of Labor

  13. Timeline Estimate

  14. Milestones • One week: Complete research, finalize feasibility • CDR: Obtain all parts, PCB design completed, develop software framework • M1: Get an object to hover in the middle of 1sqft. area • M2: Control xyz coordinates of the object • Expo: Control orientation and completion of project

  15. Risks • Power limitations into the magnets may limit object size and levitation height • Control complexity may be too difficult to implement • FPGA may be too complex

  16. Contingency Plans • Scale back to control over only the spatial coordinate, not the orientation • Control an object on a surface rather than mid air • Use photo diodes rather than IR sensors for object position • Rescale from FPGA to MSP

  17. Possible Extensions • Addition of LCD to display object data • Touchscreen for user control • Trackball control • Wireless communication between apparatus and user interface • Implement multi-core processing on Cyclone II

  18. Questions ?

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