Encoder for a fly wheel

[Ether]

Originally Posted by z_beeblebrox

Probably dumb questions, but how does one adjust the FPGA sample averaging count?

It's not a dumb question. What language are you using?

For Java or C++, see posts 29 & 36 in this thread:
http://www.chiefdelphi.com/forums/sh...30&postcount=3

For LabVIEW, it's a parameter you set, I'm not sure where. Post over on the LabVIEW forum if you can't find it.

Will this give fast enough updates to use with a bang-bang controller?

Yes, at shooter wheel speeds.

[S2K JDM]

you could just use an US digital encoder. we just drilled the middle of these shafts http://www.andymark.com/product-p/am-0153.htm slid it on the output shaft of the CIM and put set screws in it, then we just used the mounting kit that comes with that encoder at the end of the shaft.

[compboy07]

Don't forget that if you use a CANJaguar, you can use the encoder directly attached to said Jaguar. My team has successfully done that in the past.

This year, I'm using a AMT-102 capacitive encoder, which I like a lot better than the kit ones. Adjustable lines/rev (48-2048), mounts on just about anything up to the size of the CIM shaft without machining, and it seems to be more reliable than optical encoders IMHO (don't have much experience with magnetic ). Also, it has an index count (aka one pulse per rotation on a separate pin). Worth a look at least.