Incremental encoder and absolute encoderencoderThere are mainly the following differences:
Incremental encoder ：
The output is a pulse signal of relative position change.
After a power outage, the position information cannot be memorized, and a zeroing operation is required to determine the initial position after re powering on.
● ChengThis is usually relatively low.
Generally applicable for speed measurement, relative displacement measurement, etc.
absolute encoder ：
Capable of directly outputting unique codes corresponding to each position without the need for zeroing operations.
After a power outage, it can still accurately remember the current position when powered on again.
The cost is relatively high.
Commonly used in situations where high position accuracy is required and real-time absolute position information needs to be obtained, such as high-precision positioning systems.
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