ABSOLUTE ENCODER

PROBLEM TO BE SOLVED: To provide an absolute encoder which can ensure a resolution and can suppress increase in the size.SOLUTION: An absolute encoder 100 includes: a second angle sensor 32 for detecting the rotational angle of a third driven shaft 13, the shaft 13 being rotated by the rotation of an input shaft 8; and a counting mechanism 82 for specifying the number of rotation of the third driven shaft 13. The counting mechanism 82 has a plurality of magnets M, which are rotated by the rotation of the third driven shaft 13, and a plurality of hall detectors for detecting the magnetic pole of the magnets M.SELECTED DRAWING: Figure 1 【課題】分解能を確保しつつ大型化を抑制できるアブソリュートエンコーダを提供する。【解決手段】アブソリュートエンコーダ１００は、入力軸８の回転に連れて回転する第３従動軸１３の回転角を検出する第２角度センサ３２と、この第３従動軸１３の回転数を特定する計数機構８２と、を備える。計数機構８２は、第３従動軸１３の回転に連れて回転する複数のマグネットＭと、この複数のマグネットＭの磁極を検出する複数のホール検出器と、を含む。【選択図】図１