How do I pick between rotary and linear encoders?！

Some motion designs can use linear or rotary encoders, so engineers can pick between the two. Elsewhere, designs with multiple kinds with of motion might benefit from multiple actuators on both linear and rotary axes to monitor key machine sections. Engineers should identify the locations of all potential faults of a machine and pick encoders that can detect those for the controller in some way. Some installations excel when a machine uses both linear and rotary encoders(absolute encoder, incremental encoder）.

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