The required angular or linear resolution of a application determines the number of pulses per revolution.
Linear movements must first be converted into rotary, for example by means of a spindle.
An encoder is equipped with a measuring wheel. Every revolution corresponds to a distance of 200 mm (circumference). The accuracy should be 0.1 mm. What is the required resolution (ppr)?
-Circumference of the measuring wheel: U = 200 [mm]
- Accuracy of the system: G = 0,1 [mm]
- Resolution of the encoder: A = ? [pulses/resolution]
Resolution = Circumference/Accuracy = U/G
The required resolution would be 2000 ppr (pulses per revolution).
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