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Magnetic Bearing Critical Design Review

Magnetic Bearing Critical Design Review. Team miniMuffin Lauren Glogiewicz Jacob Beckner Kevin Bodkin James Holley Philip Terry. Level 0 Functional Decomposition. Level 1 Functional Decomposition. Level 2 Functional Decomposition. I out = -V in / R mag. Current Control.

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Magnetic Bearing Critical Design Review

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  1. Magnetic Bearing Critical Design Review Team miniMuffin Lauren Glogiewicz Jacob Beckner Kevin Bodkin James Holley Philip Terry

  2. Level 0 Functional Decomposition Phil T.

  3. Level 1 Functional Decomposition Phil T.

  4. Level 2 Functional Decomposition Phil T.

  5. Iout = -Vin / Rmag Current Control Jake B.

  6. Electromagnets have inductance as circuit element • Causes initial overshoot and slow rise to desired level • Must be accounted for in design • Rise Time = 20 ns                                   Leveling Time = 2.7 μs Electromagnets Jake B.

  7. Sensor Circuit • Sensor output current is based upon the distance away from the object • Ideal distance to axle from the sensor is between 0.3” - 0.8” • Beyond this, sensor data will become unreliable Kevin B.

  8. Using microcontroller on-board A/D • TI MSP430: 4 Channel 10-Bit 200 KSPS • TI C2000: 7 Channel 12-Bit 4.6 MSPS A/D Converter Kevin B.

  9. Software FD Kevin B.

  10. Two possible microcontroller / FPGA controllers: • TI C2000 •  Up to 60 MHz • Supports I2C and SPI • On board A/D Converters • Altera DE2 Board •  Up to 50 MHz • 80 GIO Pins • Ability to apply control in parallel Microprocessor / FPGA James H.

  11. TI DAC7576 •  8 channel, 12 bits •  Up to 2.3 MHz communication speed • I2C synchronous communication will be used D/A Converter James H.

  12. Magnet Test Bed James H.

  13. Magnet Test Bed James H.

  14. Milestone 1 • Floating 1D concept • Focus on feedback loop design and interface • Milestone 2 • 2D axle built and working • Expo • Fully 3D axle with horizontal stabilization Timeline Lauren G.

  15. We have received $1000 from UROP •  We will still apply for the EEF Grant Updated Budget Lauren G.

  16. ? Questions?

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