paper: Team 2410 Swerve Drive Project

[Gdeaver]

Last year we used BI 6127V1AL.5FS magnetic sensors. Go to Digikey and search for that part number. Notice the cost. Down load the data sheet for specifics.They out put an analog voltage that corresponds to the angle. The voltage varies from .25 volts to 4.75 volts. With all things considered this works out to about .5 degree resolution. This is more of a c-rio limitation. For higher resolution one would have to go to a serial (SPI) type sensor. CUI has a capacitive absolute angle sensor with 12 bit resolution. Look at the AMT series. Avago also has a serial solution. The Bi sensors worked fine for us. The Bi's have a bronze bushing so they cant take high rpm's or mis alignment. There are special couplers to protect sensors from misalignment. You may want to check first choice for an example.
http://www.digikey.com/product-detai...393-ND/2620662