how to calculate speed of an incremental encoder?

[sagar0205]

i am using an RE22I encoder
which can count upto 8192 counts per revolution,
and has A,B,Z channels.
how can i measure the speed using these channels please help
I'm using this encoder with an fpga which has a system clock,can be used in measuring speed.

 

[H.E.Tjelum]

Hi

You can measure time between each step on the encoder.

H.E.Tjelum

 

[andre_luis]

You must to compute the gearing factor and multiply to angular speed.
If you are using some device ( microcontroler , PLC ) with built-in hardware encoder module, just take diference between to samples per time unit.


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