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Pan-tilt mechanism research (view source)
Revision as of 05:11, 15 April 2021
, 05:11, 15 April 2021→Linear actuation - potential design one
solar panel dimension - 62.2 x 31.8 x 1.4 inches - 1.58m x 0.8m x 0.0355; area = 1.264 m^2<br>
__Lift on all five panels__: F = 0.5 * 1.246 kg/m^3 * (17.8 m/s)^2 * 1.264 m^2 * 5 * 2pi * sin(a) <= __7835 N__
## Encoding a Linear Actuator
There are a couple of ways to attach an encoder to the mount to track actuator position.
## Hinges
https://gatehardwarecenter.com/store/d-d-shut-it-bolt-on-baby-badass-hinge-ci3750.html?gclid=CjwKCAjwgZuDBhBTEiwAXNofRIb2o4CEUGVr_-UUNzYSLvvhYg-rvnCTHGrK9NKjKWzOGlotoMQ9GRoCb3gQAvD_BwE
## Rotary Encoders
### Single Turn Absolute
https://www.mouser.com/ProductDetail/Bourns/AMS22B5A1BHASL334N?qs=kt0%2FcWl7YWfoez7BV%252BGENA%3D%3D&mgh=1&gclid=CjwKCAjw6qqDBhB-EiwACBs6xzts0adWZ6byjvQkTijiDdVFMMXgs5_Tj4s-2xY4Qmdl2MXhLuwLaxoC9RAQAvD_BwE
https://www.mouser.com/ProductDetail/Bourns/AMS22U5A1BHBRL334?qs=Zq5ylnUbLm5JcZY%2FrTiIlQ%3D%3D
### IP 56 or higher
SPI: https://p3america.com/ercf-1-05spi-360-z/
Voltage output: https://p3america.com/ercf-1-0505-360-z/
## Sun angle calculation
[Paper on sun angles](https://www.researchgate.net/publication/283051726_A_comprehensive_solar_angles_simulation_and_calculation_using_Matlab)
[matlab function for angles](https://www.mathworks.com/matlabcentral/mlc-downloads/downloads/submissions/5430/versions/1/previews/sun_position.m/index.html)
## Galvanic corrosion
https://chemistry.stackexchange.com/questions/66501/ok-to-separate-steel-from-aluminum-with-bronze-galvanic-action
https://www.decc.com/coating/corrosion-protection/
https://www.decc.com/recent-articles/xylan-coatings-high-performance-fluoropolymers-for-function-in-extreme-conditions/
https://www.indconsupply.com/steel-it-polyurethane-aerosol-black-14oz-1012b.php?gclid=Cj0KCQjwpdqDBhCSARIsAEUJ0hMrgv_CpTaCRKWdalQlww-dn9rOYg4s44rqlBg6lgPckqAKDthed5waAvymEALw_wcB
