Goals for April 26
- Definitively prove the worth of yoke:
- Smooth out gap simulations
- Model small magnets alone in contrast, 1/4 inch and 1 inch gaps
- Create gaps in iron nail electromagnet
- Talk to Koch about alternatives to Hall (?) sensor and power source
- Individual and aggregated ferritin force:
- reliable way to estimate concentration/number of ferritin in a spot
- get units to work (inches/gradient into SI)
- distance between magnet and protein
- effect of glass?
- GENERAL DIRECTION: move yoke onto microscope stage
- EXTRA:
- read up on physics of dipole-dipole interactions in solution
- find and run the second of Koch's magnetic models
Yoke
I am in the process of proving the worth of the yoke, and I've already noticed two things:
- Without the yoke, the field appears to be a exponential decay
- With more magnets the field strength increases
While the second point makes sense, the first one gives some credence to having the yoke, even with the permanent magnets.
I am going to analyze this data at home and post it after I finish a take home exam:
Note to self key:
- cone and flat: cone and small cylinders
- flat and long: leftside of complex yoke w/o bends w/ small magnets
- iron control: control form Koch's
- control small gap: small gap control
- iron gap: break in right side on iron
- two electromagnets: iron yoke's left side only
- big control: control for 1/2" gap
- neomag big gap: 1/2" gap on left side of complex yoke
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