Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Risk reduction tests with motors are done
Conclusion is that stepper motor can be used in the MRI environment. Stepper motors is driven with an open loop controller, and do not require feedback. This is good thing, since we want to minimize the amount of information from inside to outside the MRI room.
Accomplishments from Previous Week
Tested DC motor in the MRI environment
Tested stepper motors in the MRI environment
Discussed different concepts with sponsor.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Generate different design concepts
Research different solutions for control system. (Fiber optics from controller to motor driver.)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Comments from sponsor 11-3-14 after testing DC motor in MRI room:
Based on the images, the interference produced by your motor is probably not significant at RF or microwave frequency (because there are no vertical stripes in the image), but there seems to be a large component at kHz frequencies.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Meeting with instructor 3-13-14>
Come up with many sketches of different concepts.
Bring status rapport to meeting!
We will start making sketches and cad models, after we have established which type of motor, and where it can be placed.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
N/A
Risks and Areas of Concern
User interface. Sponsor wishes to have a LabView interface on their computer in the MRI control room
Resources or Information Required but not Available
Price of non-magnetic lead screw and bearings.
Schedule
Prepare risk reduction presentation.
Update Gantt chart.
Budget (list amount spent and amount remaining)
Progress on Report and Webpage
$1500