Work Night
DATE: November 8th 2018TIME: 4:45 - 7:00 (2.25 hours)
People Who Attended:
Alex, Seth, Tanner, Avery, Paige, Thomas, Austin
Research Meeting for Prosthetic Limb - Lemelson MIT InvenTeam
Notes submitted by: Alex Magnuson
Today we discussed a potential part-time software monitor system. The system would only be able to turn on in times when there are enough volts to sufficiently charge the smart puck battery and there are extra volts to turn the software monitoring chip on. When using capacitors it's worth noting that a larger cap will draw more current which in turn decreases the voltage. There is a happy medium between capacity and voltage. We learned about a circuit that will make our generators generate positive voltage in both directions.
We worked with a motor with a geared head that Seth and I did some testing with. We hooked it up to the oscope and with only about a half turn of rotation we could jump up to 10 volts and with a more aggressive spin we could get it up to 60 volts.
Seth and I finished our spring scale testing and have the data logged on a process documentation sheet. We tested the negative to positive voltage converter circuit and had good results with it.
As a team we also decided on what some of our main goals are. They include: when should the computer be turned on? Find out how many volts do we need to trickle charge the battery. When should the computer turn on, read, and then relay information? And most basic goal of getting enough power to battery.
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| Seth, Thomas and Alex gathering data from gearboxes. |
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| Using an oscope to monitor voltage outputs. |
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| Thomas working on a "puppet" to simulate the motion of the prosthetic limb. |
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| More gearbox testing. |
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| Paige working on public relations. |
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| Taking in a lecture on systems integration. |
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| The team working on fundraising opportunity and software/hardware interface. |
Testing gearboxes.
Thomas cutting out the "Puppet" to simulate foot motion.
More testing on gearboxes.
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