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Preliminary Detailed Design Review

Preliminary Detailed Design Review. Periodontal Measurement Test System February 1, 2013. Periodontal Measurement Test System. Current method Goals of new method. Customer Needs. Specifications. Pugh Matrix. Canadianawareness.org. Phantom tooth. Specifications. Phantom Design.

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Preliminary Detailed Design Review

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  1. Preliminary Detailed Design Review Periodontal Measurement Test System February 1, 2013

  2. Periodontal Measurement Test System • Current method • Goals of new method

  3. Customer Needs

  4. Specifications

  5. Pugh Matrix

  6. Canadianawareness.org Phantom tooth

  7. Specifications

  8. Phantom Design

  9. Phantom Design

  10. Relevant US Properties • Density • Speed of sound • Acoustic impedance

  11. Material Selection

  12. Contacts • Dr. Phillips – RIT bio medical engineering • Dr. Maria Helguera – RIT imaging science • Biomed ultrasound • Eastman Dental Clinic – Dr. Caton • Bradley Rogge – RIT’s Pre-dental association • Professor Lamkin-Kennard – RIT Mechanical Engineering • HamadGhazle, Jodie Crowley – RIT Ultrasound

  13. Fixture design

  14. Specifications

  15. Positioning System Model

  16. Power Screw

  17. Turn Table

  18. Assembly Drawing

  19. Pitch Movement

  20. Power Screw Assembly

  21. Power Screw Specs

  22. Nut Detailed Drawing

  23. Turn Table Drawing

  24. Pitch Axis Drawing

  25. Mounting Table Drawing

  26. Guide Rail Clamp

  27. Pitch Selection Calculations

  28. Torque Requirement Calculations Note: All values for 1lb load on horizontal screw

  29. Bearing Selection • Very low radial loads • Guide rail support • Small axial loads • Low friction nut • Guide rail support • Basic radial bearing should handle loads

  30. Bearing Specs

  31. Couplings

  32. Collars

  33. electrical

  34. Specifications • 4.0 – Proof of concept put together, proved we could attain appropriate control required for final system • 5.0 – Unable to test, waiting on probe, able to communicate with an oscilloscope, but no data has been attained from probe to date due to lack of probe • 6.0 – Have data logging already written in code, working on limit comparison programming

  35. Block Diagram

  36. Wiring diagram

  37. Programming flowchart

  38. Electrical bom and cost

  39. Justification Control System Motors Servos were chosen for combination of price, mobility, and durability. Metal servo with high torque rating to allow ease of use with system design Stepper motors were picked based off of Voltage, Current, torque, and Driver limitations • Arduino is very compatible with LabVIEW • Arduino is low cost and as a skill is going to be part of the new Control System curriculum at RIT • EasyDriver motor control boards are inexpensive and individually replaceable if damaged. • EasyDriver allows us to do Full, stepping to increase control.

  40. Risk Assessment

  41. High Risk Items • Non-bio materials • Availability • Similarity to human tooth • Formation of phantom • Processes available hinge on materials chosen • Probe!

  42. Questions/Comments/Suggestions

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