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Real Motor Speed


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#1 billstrong

billstrong

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Posted 13 May 2009 - 01:59 PM

Hi,

I am using a 500CPR optical encoder to do vector control

I measure the rotor speed by a fixed time interval. I compare the measure speed with the signal from the encoder output channel and found it slightly higher than the one I measured.but the encoder output channel has a little bit jitter which makes me difficult to estimate the true speed.

How can I konw the real speed of motor?

Anyone successfully used an optical encoder in vector control?It would be very helpful if you can share your source code or experience

Thanks!




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