Accuracy and resolution of Rotary encoder！

Accuracy and resolution of Rotary encoder


About resolution and accuracy of the sensor understanding can we use mechanical wristwatch three play such a metaphor: the resolution of the hour is the hour, the minute hand of the resolution minutes, seconds resolution of seconds, quick response of the eye by the second hand in the space of seconds, we can even tell to about 0.3 seconds, which is a three-pointer needle mechanical watches can be done; and what is the precision, accuracy of each watch is the standard time, which is each watch is different, or at different times in different use of (getting faster or further and further slow), roughly between 1-30 seconds.

Similarly, the use of rotary encoder, resolution and accuracy are two completely different concepts.
Encoder resolution refers to the output of the encoder can be read and the minimum angle change, the corresponding parameters are: carved turn per line (line), number (PPR) pulses per revolution, minimum step (Step), bit (Bit) and so on.


Encoder accuracy refers to the data signal output from the encoder angle measurement accuracy of the true, the parameter corresponds to the arc minutes ( '), arcsec ( ").

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