BATTERY-LESS MULTI-ROTATION TYPE ABSOLUTE VALUE ENCODER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a multi-rotation type absolute value encoder device capable of detecting correctly the absolute angles of multi-rotation by preventing false rotation at the time of stopping while making the rotation to follow stably even when angular acceleration is large.;SOLUTION: In the multi-rotation type absolute value encoder device which includes a first encoder prepared on a detected rotation shaft 111, a permanent magnet prepared on the aforementioned detected rotation shaft 111, a second magnet wheel 142 on which the external perimeter of the aforementioned permanent magnet is deployed through a void, and a second encoder prepared on a shaft 122 of the aforementioned second magnet wheel 142, the aforementioned permanent magnet and the aforementioned magnet wheel 142 include synchronization loss prevention stoppers 151 and 152.;COPYRIGHT: (C)2007,JPO&INPIT