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Senior Design Update: 3 / 19 /2014

Senior Design Update: 3 / 19 /2014. Jacob Bumpus, BME/EE 2014 Casey Fitzgerald, BME 2014 Michael Schultis, BME/EE 2014. Fail Safes. Set point = 0 O verrides the PID controller Record Max/Min Pressure Alert user of potential errors Mass Balance Software Zero Monitor total mass

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Senior Design Update: 3 / 19 /2014

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  1. Senior Design Update: 3/19/2014 Jacob Bumpus, BME/EE 2014 Casey Fitzgerald, BME 2014 Michael Schultis, BME/EE 2014

  2. Fail Safes • Set point = 0 • Overrides the PID controller • Record Max/Min Pressure • Alert user of potential errors • Mass Balance Software Zero • Monitor total mass • Shut down pressure and flow, no flooding balance • Maximum Pressure • If exceeded, set pressure to zero Error Handling Demo gif

  3. Hardware Progress • Syringe pump • Removal of Large Power supply • Implemented much smaller, more portable solution • Updated circuitry components • Allows for greater precision for PID and feedback control • Since receiving connectors, we’ve begun container designs/layouts

  4. Pulsatility • Working on updating pump control panel to • take a series of flow rates and time intervals • File input or manual input • Convert flow  RPM automatically based on tubing selection

  5. Pulsatility • Need to determine approach for moving forward: • Main limitation currently is pulsation frequency • Ideas • Matching Reynold’s number (alter viscosity) to accommodate slowness • Add additional hardware (digitally controlled valve, other) to improve pulse frequency (temporal offset relative to pump) • Observe pressure wave with additional pump heads

  6. Looking Forward • Try to get laptop working • Allow us to run a true hydraulic permeability setup • Working on pulsatile flow • Ordering a container box • To allow for portability of hardware interface • Creating graphical user interface hardware select menu • Syringe pump control? • Battery powered surge protector? • Allow for continued usage when power goes out momentarily

  7. Gantt Chart

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