P08028: Magnet Centering Device/public/
Test Product Concept(s)
Table of Contents
Purpose of the Concept Test
- Gather people of influence and who are associated with the LVAD Heart Pump project to determine if concept of design is feasible and viable.
- The people gathered for the concept review eithered worked or are working for the LVAD project
- Presentated a power point presentation and presented the group with a design which implemented the following ideas:
- using vacuum or pneumatic device to hold the magnet and bushing
- have a stationary magnet during the measuring of the magnetic field
- implement a laser sensor to record the physical diameter of components
- use linear stages to move bushing into position
Communicate the Concept
- Present the ideas in a presentation format. The presentation involved SolidWorks drawing and schematics to illustrate the physical viability of the test device. A flowchart of the process was provided to illustrate the sequence of events to the process.
Measure Customer Reponse
- Meet with the customer to review the outcome of the presentation, determined the pros and cons of design.
Interpret the Results
- Some of the concerns were taking into consideration and the following presents the problems or concerns with the concept of the design:
- have the less machined parts the better, the tolerance stacking up
- a mechanical chuck will be difficult to machine or purchase due to the tolerance or need for non-magnetic material
- having a electronic, non-contact measuring device insures less human contact therefore less error
- an array of Hall Effect sensors will be difficult to calibrate and take time for each test which will increase the time of production
- having a post device hold either the magnet or bushing would be difficult to machine and the wear on it would render it useless over time.
- having a machined component to hold component in a slip fit-no movement would be hard to machine and wear would present a problem
Reflect on the Results and the Process
- a vacuum chuck would eliminate problems with the mechanical wear
- laser sensor gives the test rig a non-contact measuring aspect
- a rotary stage would eliminate the Hall effect sensor array while increasing the test rigs adaptability
- having the magnet in one position would give the test rig a point of reference