Position detection apparatus, lens apparatus, image pickup system, machine tool apparatus, position detection method, and non-transitory computer-readable storage medium

摘要

A position detection apparatus (100) including a scale (20) including a pattern periodically formed, a detector (10) configured to be movable relative to the scale, and a signal processor (30), the signal processor (30) includes first to seventh periodic signal generating units (33, 34, 35, 36, 37, 38, and 39) which generate first to seventh periodic signals respectively, the first periodic signal generating unit synthesizes the fourth periodic signal and the fifth periodic signal to generate the first periodic signal, and the second periodic signal generating unit synthesizes the sixth periodic signal and the seventh periodic signal to generate the second periodic signal.