Hi Jon,
Thinking about it, you're mostly right. I didn't think it through. My
suggested spacing assumes the teeth are square, which of course they are
not.
The actual spacing is going to depend on the sensing range of the
sensors and width of the tips of the teeth. 1/4 tooth spacing is likely
a good starting point. You aren't going to get anywhere near perfect 90
degree quadrature but there isn't much you can do about it.
Les
On 18/02/2020 05:00, Jon Elson wrote:
On 02/17/2020 03:57 PM, Les Newell wrote:
They should be any multiple of the tooth spacing plus half a tooth
spacing.
Nope, I made that mistake first time. It should be "plus 1/4 of a
tooth space".
Jon
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