Quadrature encoder

Other Hardware Motors, Mechanics, Power and CNC
1

Hello,

does any one knows where i can find rotary encoders with a resolution of 0.5 minutes or better to use them in a diy project?

Thank you

2

how many pulses per rotation is that?

3

10800 cpr (43200 in quadrature)

i;ve found one here http://www.digikey.com/product-detail/en/AEDA-3300-BE1/AEDA-3300-BE1-ND/2210489
but is quite expensive

4

Resolutions that high are going to be very expensive. 1000, 2000 5000 CPR are rather common, but 10800 is going to be pricy. Not much demand for them.

5

You could gear your encoder with a timing belt and pulleys to achieve a higher resolution.

6

I all ready use a worm gear mechanism with 1/40 ratio, but i need something more precise

Can a 9 dof imu do the job?

7

i don't know if this link to be much help to you but here's one that is as precise i have ever seen

http://www.qsl.net/oe5jfl/encoder.htm