| 摘要 |
A problem to be solved is to provide a signal processor, an encoder, and a motor system that can reduce a position difference occurring between a detection position calculated by the encoder and an actual position. To solve the problem, the signal processor includes an AD conversion unit that changes a periodic analog signal output from a detector in accordance with a position Q of a motor to a digital signal at a predetermined conversion period Tad, a tracking unit that calculates a position P of the motor at an arithmetic period Tc on the basis of the digital signal that is converted and output at the conversion period Tad by the AD conversion unit, an operation state identifier that identifies an operation state of the motor on the basis of the position P of the motor calculated by the tracking unit, and an arithmetic period determiner (213), (216) that changes the arithmetic period Tc of the tracking unit in accordance with the operation state of the motor identified by the operation state identifier such that the position P of the motor calculated by the tracking unit follows the actual position Q of the motor. |
