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Optical Encoder Velocity Resolution!

Changchun Rongde Optics Co.,Ltd.   Release time:2016/8/23   Browse:603

An incremental encoder is also a velocity-measuring device.
The velocity resolution of an incremental encoder depends on
the method that is employed to determine velocity. Since the
pulse-counting method and the pulse-timing method are both
based on counting, the resolution corresponds to the change in
angular velocity that results from changing (incrementing or
decrementing) the count by one. If the pulse-counting method
is employed, a unity change in the count n corresponds to a
speed change of

 
N is the number of windows in the code track and T is the
sampling period.
• This velocity resolution is independent of the angular velocity
itself. The resolution improves, however, with the number of
windows and the sampling period.
 
absolute encoder, incremental encoder, hybrid encoder, non-magnetic encoder, multi-turn encoder, multi-turn combination encoder, draw wire encoder, digital readout, linear scale


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