Re: 18 Bit Magnetic Rotary Encoder


On Mon, May 9, 2022 at 07:25 AM, Howard Dutton wrote:
On Mon, May 9, 2022 at 07:20 AM, Howard Dutton wrote:
With OnStepX one could in theory correct tracking (as a servo motor driver) but that's another thing.
... and the idea a $33 18bit magnetic encoder will be useful for that is a real stretch, to say the least.
So 18 bit encoder is not enough accurate to correct tracking error? if I'm not wrong 2^18 = 262144 ticks /rev and the resolution if encoder on GR2/Final stage should be (360° x 3600)/262144 = 4.49 arc sec, its right? . Can I attach the encoder to GR1 to increase the resolution?

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